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Keybot 158 Ergebnisse  www.agr.ca
  Incidence du taux et du...  
Solanum tuberosum L. var. Russet Burbank). - Agriculture et Agroalimentaire Canada (AAC)
Solanum tuberosum L. ‘Russet Burbank’). - Agriculture and Agri-Food Canada (AAFC)
  Genetic Risk Assessment...  
Dalea villosa var. villosa) in the Canadian Prairie. - Agriculture et Agroalimentaire Canada (AAC)
Dalea villosa var. villosa) in the Canadian Prairie. - Agriculture and Agri-Food Canada (AAFC)
  Incidence du taux et du...  
Incidence du taux et du moment d’application du chlorure de potassium sur le rendement et la qualité des pommes de terre (Solanum tuberosum L. var. Russet Burbank).
Effect of rate and timing of potassium chloride application on the yield and quality of potato (Solanum tuberosum L. ‘Russet Burbank’).
  Seed chlorophyll influe...  
Brassica napus L. var AC Excel). - Agriculture et Agroalimentaire Canada (AAC)
Brassica napus L. var AC Excel). - Agriculture and Agri-Food Canada (AAFC)
  Crop selection for adva...  
Triticum turgidum var durum). - Agriculture et Agroalimentaire Canada (AAC)
Triticum turgidum var durum). - Agriculture and Agri-Food Canada (AAFC)
  Targeted mapping of Cdu...  
Triticum turgidum L. var durum). - Agriculture et Agroalimentaire Canada (AAC)
Triticum turgidum L. var durum). - Agriculture and Agri-Food Canada (AAFC)
  Caprifoliaceae - Agricu...  
Lonicera ruprechtiana var. calvescens
Common Name: Honeysuckle
  Seed chlorophyll influe...  
Onyilagha, J.C., Elliott, R.H., Buckner, E., Okiror, S.O., et Raney, J.P. (2011). « Seed chlorophyll influences vigor in oilseed rape (Brassica napus L. var AC Excel). », Journal of Agricultural Science, 3(2), p.
Onyilagha, J.C., Elliott, R.H., Buckner, E., Okiror, S.O., and Raney, J.P. (2011). "Seed chlorophyll influences vigor in oilseed rape (Brassica napus L. var AC Excel).", Journal of Agricultural Science, 3(2), pp. 73-79. doi : 10.5539/jas.v3n2p73 Access to full text
  Genetic Risk Assessment...  
Fu, Y.B., Peterson, G.W., et Richards, K.W. (2011). « Genetic Risk Assessment of a Threatened Remnant Population of Hairy Prairie-Clover (Dalea villosa var. villosa) in the Canadian Prairie. », Diversity, 3(3), p.
Fu, Y.B., Peterson, G.W., and Richards, K.W. (2011). "Genetic Risk Assessment of a Threatened Remnant Population of Hairy Prairie-Clover (Dalea villosa var. villosa) in the Canadian Prairie.", Diversity, 3(3), pp. 375-389. doi : 10.3390/d30x000x Access to full text
  Crop selection for adva...  
Stasiak, M., Gidzinski, D., Jordan, M.C., et Dixon, M.A. (2012). « Crop selection for advanced life support systems in the ESA MELiSSA program: Durum wheat (Triticum turgidum var durum). », Advances in Space Research, 49(12), p.
Stasiak, M., Gidzinski, D., Jordan, M.C., and Dixon, M.A. (2012). "Crop selection for advanced life support systems in the ESA MELiSSA program: Durum wheat (Triticum turgidum var durum).", Advances in Space Research, 49(12), pp. 1684-1690. doi : 10.1016/j.asr.2012.03.001 Access to full text
  Targeted mapping of Cdu...  
Wiebe, K., Harris, N.S., Faris, J.D., Clarke, J.M., Knox, R.E., Taylor, G.J., et Pozniak, C.J. (2010). « Targeted mapping of Cdu1, a major locus regulating grain cadmium concentration in durum wheat (Triticum turgidum L. var durum). », Theoretical and Applied Genetics (TAG), 121(6), p.
Wiebe, K., Harris, N.S., Faris, J.D., Clarke, J.M., Knox, R.E., Taylor, G.J., and Pozniak, C.J. (2010). "Targeted mapping of Cdu1, a major locus regulating grain cadmium concentration in durum wheat (Triticum turgidum L. var durum).", Theoretical and Applied Genetics (TAG), 121(6), pp. 1047-1058. doi : 10.1007/s00122-010-1370-1 Access to full text
  Moraceae - Agriculture ...  
Morus alba var. tatarica
Common Name: Osage Orange
  Celastraceae - Agricult...  
Euonymus hamiltonianus var. yedoensis
Euonymus hamiltonianus var. nikoensis
  Jordan, Mark, Ph.D. - A...  
Stasiak, M., Gidzinski, D., Jordan, M.C., et Dixon, M.A. (2012). « Crop selection for advanced life support systems in the ESA MELiSSA program: Durum wheat (Triticum turgidum var durum). », Advances in Space Research, 49(12), p.
Stasiak, M., Gidzinski, D., Jordan, M.C., and Dixon, M.A. (2012). "Crop selection for advanced life support systems in the ESA MELiSSA program: Durum wheat (Triticum turgidum var durum).", Advances in Space Research, 49(12), pp. 1684-1690. doi : 10.1016/j.asr.2012.03.001
  Crop selection for adva...  
Un des volets du programme MELiSSA de l’Agence spatiale européenne est la sélection de cultivars candidats pour les techniques spécialisées de maintien des fonctions vitales et l’étude des exigences de croissance de ces cultivars.
As part of an ESA MELiSSA investigation into advanced life support (ALS) candidate crop cultivar selection and growth requirements, the University of Guelph’s Controlled Environment Systems Research Facility (CESRF) conducted a case study on growth and development of four durum wheat cultivars (Triticum turgidum var durum) grown hydroponically under controlled conditions in a sealed environment. Cultivars tested were Canadian developed Avonlea, Commander, Eurostar and Strongfield. There were few fundamental differences in durum quality parameters between hydroponically and field grown wheat, however yields of Eurostar and Strongfield exceeded those of field trials by 41% and 87% respectively.
  Review of the Nearctic,...  
Un tableau de détermination de ces espèces et d’autres espèces d’Amérique centrale est également fourni. Les nouvelles synonymies suivantes sont proposées : Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var.
The 18 species of the genus Colliuris occurring in Canada, United States of America, Mexico, and the Greater Antilles are redescribed and information on their distribution and habitat requirements is provided. A key for the separation of these species as well as other ones recorded from Central America is included. The following new synonymies are proposed: Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var. extrema Liebke, 1930, Colliuris picta var. concluda Liebke, 1930 and Colliuris yucatana Liebke, 1930 with Colliuris pensylvanica (Linné, 1767) and Apiodera transparens Motschulsky, 1864 and Colliuris subdistincta var. maculata Liebke, 1930 with Colliuris subdistincta (Chaudoir, 1863). Colliuris caymanensis Darlington, previously considered a subspecies of C. tetrastigma (Chaudoir), is treated as a species, new status.
  ‘Wendy’ Strawberry. - A...  
La plante est vigoureuse, a un port semblable à celui du fraisier ‘Évangéline’ et produit un nombre amplement suffisant de stolons pour l’établissement de rangs nattés. Dans le cadre d’essais en serre, le fraisier ‘Wendy’ a été exposé à de multiples races du Phytophthora fragariae Hickman var.
‘Wendy’ strawberry (Fragaria ·ananassa Duchesne) was commercially introduced in Canada in July 2006 by the Atlantic Food and Horticulture Research Center (AFHRC) of Agriculture and Agri-Food Canada. ‘Wendy’, a short-day cultivar, ripens in the early season, offering growers an alternative to ‘Annapolis’ with good fruit quality and yield. Plants of ‘Wendy’ are vigorous, resembling ‘Evangeline’ in habit, and they produce ample runners to establish matted rows. In greenhouse screening with multiple races of Phytophthora fragariae Hickman var. fragariae, ‘Wendy’ has demonstrated partial resistance.
  Review of the Nearctic,...  
Un tableau de détermination de ces espèces et d’autres espèces d’Amérique centrale est également fourni. Les nouvelles synonymies suivantes sont proposées : Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var.
The 18 species of the genus Colliuris occurring in Canada, United States of America, Mexico, and the Greater Antilles are redescribed and information on their distribution and habitat requirements is provided. A key for the separation of these species as well as other ones recorded from Central America is included. The following new synonymies are proposed: Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var. extrema Liebke, 1930, Colliuris picta var. concluda Liebke, 1930 and Colliuris yucatana Liebke, 1930 with Colliuris pensylvanica (Linné, 1767) and Apiodera transparens Motschulsky, 1864 and Colliuris subdistincta var. maculata Liebke, 1930 with Colliuris subdistincta (Chaudoir, 1863). Colliuris caymanensis Darlington, previously considered a subspecies of C. tetrastigma (Chaudoir), is treated as a species, new status.
  First report of  
Fusarium redolens (syn. F. oxysporum var. redolens) est un agent pathogène qui s’attaque à plusieurs espèces de plantes. En Saskatchewan, Fusarium redolens était souvent isolé à partir de tissus nécrotiques et décolorés de racines et de collets provenant de pois chiches, de pois, de lentilles et de blé dur.
Fusarium redolens [syn: F. oxysporum var. redolens] is pathogenic on a wide range of plant species. Fusarium redolens was frequently isolated from necrotic and discolored root and crown tissues of chickpea, pea, lentil and durum wheat in Saskatchewan. The fungus was identified using distance analysis of the translation elongation factor-1 alpha sequences. Comparative pathogenicity tests showed that F. redolens, like Fusarium graminearum and Cochliobolus sativus, caused lesions and/or discolorations on the root, crown and shoot of durum wheat, pea and chickpea, although it had a different host preference. While F. redolens was most virulent on pea, the other two fungi were more virulent on durum wheat. It appears that F. redolens is common in the Prairie Ecozone of Saskatchewan and it may cause yield reduction in pea, chickpea and durum crops. This warrants a closer look at the biology and ecology of F. redolens in the Canadian Prairies.
  ‘Laurel’ strawberry. - ...  
‘Laurel’, fraisier (Fragaria ×ananassa Duchesne ex Rozier) à jours courts, a été mis à l’essai par des producteurs des provinces de l’Atlantique depuis 1999 et a été introduit pour la production commerciale au Canada en 2012 par le Centre de recherches de l’Atlantique sur les aliments et l’horticulture d’Agriculture et Agroalimentaire Canada. ‘Laurel’ est un cultivar à rendement moyen qui produit de gros fruits aromatiques et savoureux prêts à cueillir à la mi-saison.
‘Laurel’, a short-day strawberry (Fragaria x ananassa Duchesne ex Rozier), has been tested by growers in the Atlantic Provinces since 1999 and commercially introduced in Canada in 2012 by the Atlantic Food and Horticulture Research Center of Agriculture and Agri-Food Canada. ‘Laurel’ produces medium yields of large, aromatic, flavorful fruit ripening in the midseason, offering growers a cultivar especially suited to please pick-your-own and direct marketing customers. Plants of ‘Laurel’ are vigorous, resembling ‘Cavendish’ in habit, and they produce ample runners to establish matted rows. Plants are highly resistant to red stele root rot disease (incited by Phytophthora fragariae Hickman var. fragariae) andmoderately resistant to several leaf diseases.
  Blé dur ambré Napoleon....  
Napoleon est un blé dur ambré (Triticum turgidum L. var. durum) qui répond aux critères de qualité de la classe du blé dur ambré du l’ouest canadien. Napoleon a été évalué lors d’essais coopératifs pour la certification des blés durs ambrés en 1996, 1997 et 1998.
Napoleon is an amber durum wheat (Triticum turgidum L. var. durum) that meets the end-use quality specifications of the Canada Western Amber Durum wheat class. Napoleon was evaluated in the Durum Cooperative Test in 1996, 1997 and 1998 as DT484. Overall, Napoleon had significantly higher grain yield than all checks except AC Avonlea, and Napoleon had higher grain yields in the Black soil zone compared with the Brown soil zone. Napoleon had maturity similar to AC Morse and AC Avonlea, but was 1 d earlier maturing than Kyle and 2 d later maturing than Hercules. Napoleon was similar to AC Avonlea in height, but was significantly taller than AC Morse, and significantly shorter than Kyle and Hercules. Napoleon had lower lodging scores than Hercules and Kyle, but had higher lodging scores than AC Avonlea and AC Morse. Napoleon is resistant to leaf rust, stem rust, and common bunt, and moderately susceptible to loose smut, leaf spot and Fusarium head blight. Napoleon is the first low cadmium durum cultivar registered in Canada.
  Review of the Nearctic,...  
Un tableau de détermination de ces espèces et d’autres espèces d’Amérique centrale est également fourni. Les nouvelles synonymies suivantes sont proposées : Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var.
The 18 species of the genus Colliuris occurring in Canada, United States of America, Mexico, and the Greater Antilles are redescribed and information on their distribution and habitat requirements is provided. A key for the separation of these species as well as other ones recorded from Central America is included. The following new synonymies are proposed: Casnonia picta Chaudoir, 1843, Casnonia limbata Waterhouse, 1878, Colliuris picta var. extrema Liebke, 1930, Colliuris picta var. concluda Liebke, 1930 and Colliuris yucatana Liebke, 1930 with Colliuris pensylvanica (Linné, 1767) and Apiodera transparens Motschulsky, 1864 and Colliuris subdistincta var. maculata Liebke, 1930 with Colliuris subdistincta (Chaudoir, 1863). Colliuris caymanensis Darlington, previously considered a subspecies of C. tetrastigma (Chaudoir), is treated as a species, new status.
  Physiologie de l’amélio...  
Des stratégies différentes ont permis d’accroître le rendement de deux cultivars relativement récents de blé dur ambré de l’Ouest canadien (DAOC) (Triticum turgidum L. var. durum) et de maintenir la forte teneur en protéines de leur grain, comparativement aux cultivars plus anciens.
Two relatively new Canada Western Amber Durum (CWAD) (Triticum turgidum L. var durum) cultivars used different strategies to increase yield and maintain high grain protein relative to older cultivars. AC Navigator (semi-dwarf) increased kernel weight and spikes per plant. AC Avonlea (conventional height) reduced height and increased spike size. AC Avonlea remobilized more nitrogen (N) to the grain than AC Navigator, which could be attributed to its large spike sink.
  Phylogeny and maternal ...  
Les reconstructions phylogénétiques faites à l’aide du maximum de parcimonie, de l’inférence bayésienne et du réseau TCS ont permis de séparer les espèces en trois groupes réciproquement monophylétiques. Les espèces Kengyilia kokonorica, Kengyilia melanthera, K. melanthera var.
Three chloroplast DNA regions (matK, rbcL and trnH-psbA) were used to analyze the phylogenetic relationships and maternal donor of Kengyilia species and their closely related species. The Maximum Parsimony, Bayesian Inference and TCS network phylogenetic reconstructions partitioned the species into three reciprocally monophyletic groups. Kengyilia kokonorica, Kengyilia melanthera, K. melanthera var. tahopaica, Kengyilia mutica, and Kengyilia thoroldiana were related to species of Agropyron, whereas Kengyilia alatavica, Kengyilia batalinii, Kengyilia gobicola, Kengyilia kaschgarica, Kengyilia longiglumis, Kengyilia nana, Kengyilia stenachyra, Kengyilia tahelacana, and Kengyilia zhaosuensis were related to species of Pseudoroegneria and Roegneria. In addition, Kengyilia grandiglumis, Kengyilia hirsuta, Kengyilia laxiflora, and Kengyilia rigidula were related to species of Pseudoroegneria and Roegneria in phylogenetic analyses of matK and rbcL, but to species of Agropyron in phylogenetic analyses of trnH-psbA. These results indicate that there have been at least two phylogenetically divergent maternal donors within Kengyilia, i.e. Agropyron (P genome) and Roegneria (StY genome).
  Allelic variation at  
La coloration jaune de la semoule de blé dur (Triticum turgidum L. var. durum) provient en partie de la présence de caroténoïdes dans l’albumen du grain et constitue un caractère important pour la qualité d’utilisation finale.
The yellow pigment (YP) of durum wheat (Triticum turgidum L. var durum) semolina is due in part to the presence of carotenoid pigments found in the endosperm and is an important end-use quality trait. Phytoene synthase (Psy) is considered a rate-limiting enzyme in the carotenoid biosynthetic pathway and in this study, three alleles of Psy1-A1 were sequenced from four durum wheat cultivars and a co-dominant marker was developed for genetic mapping. Psy1-A1 mapped to chromosome 7AL near Xwmc809 in three durum mapping populations and was significantly associated with a pigment quantitative trait loci (QTL) identified on that chromosome. A second QTL localized 25 cM proximal to Psy1-A1 in two populations, and the interaction between the two QTL was not significant. Consistent with QTL mapping data, the Psy1-A1o allele was associated with elevated pigment in a validation population comprising 93 diverse cultivars and breeding lines. These results confirm an earlier hypothesis that Psy1, and at least one additional gene in the distal region of 7AL, are associated with grain YP differences in durum wheat. The functional co-dominant marker developed in this study differentiates the Psy1-A1 alleles reported here and could be used as a target to enhance YP selection in durum wheat breeding programs.
  Fu, Yong-Bi, Ph.D. - Ag...  
Fu, Y.B., Peterson, G.W., et Richards, K.W. (2011). « Genetic Risk Assessment of a Threatened Remnant Population of Hairy Prairie-Clover (Dalea villosa var. villosa) in the Canadian Prairie. », Diversity, 3(3), p.
Fu, Y.B., Peterson, G.W., and Richards, K.W. (2011). "Genetic Risk Assessment of a Threatened Remnant Population of Hairy Prairie-Clover (Dalea villosa var. villosa) in the Canadian Prairie.", Diversity, 3(3), pp. 375-389. doi : 10.3390/d30x000x
  Reaction to  
, y compris de cultures de légumes à cycle court (pak-choï de Shanghai (B. rapa, sous-espèces Chinensis var. communis)], soy sum de Chine (B. rapa sous-espèce Chinensis var. utilis) et chou chinois (B. rapa sous-espèce Pekinensis), la Rapid Cycling Brassica Collection (RCBC), aussi nommée Wisconsin Fast Plants, et le canola de printemps (B. napus).
Field trials were conducted from 2008 to 2010 to assess the disease reaction to clubroot, caused by Plasmodiophora brassicae Woronin, in selected lines of Brassica spp., including short-season vegetable crops [Shanghai pak choy (B. rapa subsp. Chinensis var. communis)], Chinese flowering cabbage (B. rapa subsp. Chinensis var. utilis), and napa cabbage (B. rapa subsp. Pekinensis), the Rapid Cycling Brassica Collection (RCBC), also known as Wisconsin Fast Plants, and spring canola (B. napus). The trials were conducted on naturally infested soil with P. brassicae at the Muck Crops Research Station in Ontario, Canada, where pathotype 6 is predominant. Clubroot incidence and severity were higher in 2008 and 2010 compared with 2009. The lines of Shanghai pak choy and Chinese flowering cabbage were highly susceptible to clubroot, but each of the clubrootresistant cultivars of napa cabbage, ‘Deneko’, ‘Bilko’, and ‘Yuki’, was highly resistant to pathotype 6. Among the RCBC lines, B. carinata and B. juncea were highly susceptible and could be used as susceptible models for further studies. Two RCBC lines, B. napus and R. sativus, were resistant to pathotype 6. Two of the canola cultivars, 46A76 and 46A65, were susceptible, but two others, ‘45H21’ and ‘Invigor 5020LL’, were highly resistant to pathotype 6. This difference in response can be exploited in future studies of clubroot reaction in canola.
  Reaction to  
, y compris de cultures de légumes à cycle court (pak-choï de Shanghai (B. rapa, sous-espèces Chinensis var. communis)], soy sum de Chine (B. rapa sous-espèce Chinensis var. utilis) et chou chinois (B. rapa sous-espèce Pekinensis), la Rapid Cycling Brassica Collection (RCBC), aussi nommée Wisconsin Fast Plants, et le canola de printemps (B. napus).
Field trials were conducted from 2008 to 2010 to assess the disease reaction to clubroot, caused by Plasmodiophora brassicae Woronin, in selected lines of Brassica spp., including short-season vegetable crops [Shanghai pak choy (B. rapa subsp. Chinensis var. communis)], Chinese flowering cabbage (B. rapa subsp. Chinensis var. utilis), and napa cabbage (B. rapa subsp. Pekinensis), the Rapid Cycling Brassica Collection (RCBC), also known as Wisconsin Fast Plants, and spring canola (B. napus). The trials were conducted on naturally infested soil with P. brassicae at the Muck Crops Research Station in Ontario, Canada, where pathotype 6 is predominant. Clubroot incidence and severity were higher in 2008 and 2010 compared with 2009. The lines of Shanghai pak choy and Chinese flowering cabbage were highly susceptible to clubroot, but each of the clubrootresistant cultivars of napa cabbage, ‘Deneko’, ‘Bilko’, and ‘Yuki’, was highly resistant to pathotype 6. Among the RCBC lines, B. carinata and B. juncea were highly susceptible and could be used as susceptible models for further studies. Two RCBC lines, B. napus and R. sativus, were resistant to pathotype 6. Two of the canola cultivars, 46A76 and 46A65, were susceptible, but two others, ‘45H21’ and ‘Invigor 5020LL’, were highly resistant to pathotype 6. This difference in response can be exploited in future studies of clubroot reaction in canola.
  Genetic Risk Assessment...  
La dalée velue [Dalea villosa (Nutt.) Spreng. var. villosa] est une fleur sauvage menacée au Canada. Pour appuyer les efforts de conservation de cette plante, nous avons évalué la diversité génétique d’une population relique de dalée velue située dans les Prairies canadiennes, au moyen de la technique AFLP (polymorphisme de longueur des fragments amplifiés).
Hairy prairie-clover [Dalea villosa (Nutt.) Spreng. var. villosa] is a threatened Canadian wildflower. To facilitate the efforts of conserving this threatened plant, amplified fragment length polymorphism (AFLP) technique was applied to assess genetic diversity in a remnant hairy prairie-clover population in the Canadian Prairie. Three AFLP primer pairs were employed to genotype 610 individual plants from the population and 15 plants from a North Dakota composite population, and 100 polymorphic AFLP bands were analyzed. The assayed plants displayed 23% AFLP variation present between the remnant population and the North Dakota composite population, but maintained a high level (91%) of AFLP variation within patches of the remnant population. The individual genetic distinctiveness measured by average AFLP dissimilarity was positively associated with latitude and negatively with elevation. The among-patch AFLP variation was significantly related to inter-patch distance, indicating local genetic differentiation within the remnant population. However, the proportions of within-patch AFLP variation were not associated with any patch characteristics assessed (i.e. , patch size, perimeter, nearest neighbor distance, mean inter-patch distance). No fine-scale genetic structure was found within three large patches, suggesting little genetic correlations present for plants five meters apart. Some genetically distinctive and diverse patches were also identified. These findings indicate that the genetic risk of the remnant hairy prairie-clover population in the Canadian Prairie is low.
  Targeted mapping of Cdu...  
Certains cultivars de blé dur (Triticum turgidum L. var durum) ont tendance à accumuler du cadmium (Cd) dans leurs grains. Cette tendance est d’ordre génétique. Un gène majeur, désigné Cdu1 et situé sur le chromosome 5B, est responsable de la régulation de la concentration de Cd dans les grains, mais on ne connaît pas les facteurs génétiques qui confèrent le phénotype de faible accumulation de Cd.
Some durum wheat (Triticum turgidum L. var durum) cultivars have the genetic propensity to accumulate cadmium (Cd) in the grain. A major gene controlling grain Cd concentration designated as Cdu1 has been reported on 5B, but the genetic factor(s) conferring the low Cd phenotype are currently unknown. The objectives of this study were to saturate the chromosomal region harboring Cdu1 with newly developed PCR-based markers and to investigate the colinearity of this wheat chromosomal region with rice (Oryza sativa L.) and Brachypodium distachyon genomes. Genetic mapping of markers linked to Cdu1 in a population of recombinant inbred substitution lines revealed that the gene(s) associated with variation in Cd concentration resides in wheat bin 5BL9 between fraction breakpoints 0.76 and 0.79. Genetic mapping and quantitative trait locus (QTL) analysis of grain Cd concentration was performed in 155 doubled haploid lines from the cross W9262-260D3 (low Cd) by Kofa (high Cd) revealed two expressed sequence tag markers (ESMs) and one sequence tagged site (STS) marker that co-segregated with Cdu1 and explained >80% of the phenotypic variation in grain Cd concentration. A second, minor QTL for grain Cd concentration was also identified on 5B, 67 cM proximal to Cdu1. The Cdu1 interval spans 286 kbp of rice chromosome 3 and 282 kbp of Brachypodium chromosome 1. The markers and rice and Brachypodium colinearity described here represent tools that will assist in the positional cloning of Cdu1 and can be used to select for low Cd accumulation in durum wheat breeding programs targeting this trait. The isolation of Cdu1 will further our knowledge of Cd accumulation in cereals as well as metal accumulation in general.
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