《Table 6–Genes/QTL identified for abiotic stress tolerance in chickpea and pigeonpea.》

《Table 6–Genes/QTL identified for abiotic stress tolerance in chickpea and pigeonpea.》   提示:宽带有限、当前游客访问压缩模式
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《Integrated physiological and molecular approaches to improvement of abiotic stress tolerance in two pulse crops of the semi-arid tropics》


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Although marker-assisted backcrossing(MABC)has been widely used for introgression of resistance to biotic stresses into chickpea and other grain legumes,reports of the application of MABC for improving abiotic stress resistance/tolerance in chickpea are few.Under the Tropical Legume-Iinitiative of the CGIAR Generation Challenge Program financed by the Bill&Melinda Gates Foundation,two major MABC projects are continuing in chickpea for drought tolerance at ICRISAT and its partner organizations[138].Drought-tolerant progenies(BC3F3:4)in the genetic background of‘JG 11’(a popular Indian chickpea cultivar)have been developed by the transfer of a genomic region,a“QTLhotspot”from the donor‘ICC 4958’that carries several QTL for drought tolerance.Initiatives have also been undertaken to use marker-assisted recurrent selection(MARS)in chickpea to develop and identify drought-tolerant lines having favorable alleles using ICCV 04112×ICCV 93954 and ICCV 05107×ICCV94954[73].In pigeonpea,a few candidate genes such as Cc Hy PRP,Cc CYP,and Cc CDR genes that control drought,salinity and cold have been characterized and validated(Table 6).Recently,the Al-responsive Cc STOP1 and Cc MATE1genes have been characterized[82];this will contribute to pigeonpea breeding for tolerance to soil acidity.