数字农科院2.0

Expressed sequence tag-PCR markers for identification of alien barley chromosome 2H in wheat

文献类型： 外文期刊

作者： Wang, M. J.;Zou, H. D.;Wu, Y.;Yuan, Y. P.;Lin, Z. S.;Chen, X.

作者机构：

关键词： Wheat;Barley;Chromosome 2H;EST-PCR marker

期刊名称： GENETICS AND MOLECULAR RESEARCH

ISSN： 1676-5680

年卷期： 2012 年 11 卷 3 期

页码：

收录情况： SCI

摘要： We developed EST-PCR markers specific to barley chromosome 2H, for the purpose of effectively tracing alien chromosomes or chromosome parts in the wheat genetic background. The target alien chromosome 2H confers high resistance to pre-harvest sprouting, which is a worldwide natural disaster in wheat. A total of 120 primer pairs were selected by combining the wheat group 2 chromosomes of the EST database and the genome sequences of the new model plant Brachypodium distachyon. Seventy-seven of 120 primer pairs were polymorphic and 31 of 120 primer pairs were monomorphic between a set of wheat-barley chromosome 2H disomic addition/substitution lines and their parents by agarose gel electrophoresis and polyacrylamide gel electrophoresis. Thirty of 77 polymorphic primer pairs including primer pair P120 derived from the basi gene were chromosome 2H-specific. These markers are expected to be valuable in screening of wheat-barley chromosome 2H recombination lines and pre-harvest sprouting resistant varieties.

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