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Chromosome location and SSR markers of a stripe rust resistance gene from wheat (Triticum aestivum) line n9738
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نویسنده
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yang b. ,ji w. ,wang c. ,xue f. ,ali m. ,wang y. ,zhang h. ,liu x.
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منبع
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pakistan journal of botany - 2013 - دوره : 45 - شماره : 3 - صفحه:719 -724
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چکیده
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The objective of present study here was to determine the inheritance and chromosomal location of the resistance gene in n9738. the phenotypic data of f2 plants,from the crosses n9738/huixianhong and n9738/abbondanza,respectively,implied that the stripe rust resistance in n9738 was controlled by a single dominant gene,temporarily designated yrn9738. monosomic (nullisomic) analysis revealed yrn9738 is on wheat chromosome 1b. seventy-eight ssr markers on chromosome 1b were screened on the parents and bulks. four ssr markers (xgpw7422,xgpw5195,xgpw7812,and xcfd65) were used to construct a linkage map for yrn9738 and xcfd65 was closely linked to yrn9738 with genetic distance of 3.5 cm. these linked markers were located on chromosome 1bl with chinese spring nullisomic-tetrasomics and ditelosomics of homoeologous group 1. their presence in the deletion stocks of chromosome 1b located xgpw7422 and xgpw7812 in bin 1bl06-0.32-0.47 and xgpw5195 in bin 1bl06-0.32. yrn9738 should be on wheat chromosome 1b near to the centromere and useful in wheat breeding programs.
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آدرس
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college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, department of biotechnology,sindh agricultural university, Pakistan, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China, college of agronomy,state key laboratory of crop stress biology for arid areas,northwest a and f university,no. 3 taicheng road,712100 yangling, China
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Authors
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