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Chahande, Rahul V.; Kulwal, Pawan L.; Mhase, Laxman B.; Jadhav, Ashok S.
Journal of genetics, 10/2021, Letnik: 100, Številka: 2Journal Article
Chickpea is an important cool season legume crop. The breeding efforts in chickpea are often hampered due to the narrow genetic base. Availability of diverse germplasm is an essential requirement for any crop improvement programme. This can facilitate development of desirable gene combinations and subsequently the improved cultivars. In any marker-assisted selection (MAS) programme, study of parental polymorphism using QTL linked markers is a pre-requisite for screening of desired genotypes. Any such study involving use of markers chosen randomly can only tell the diversity of the parents, but does not guarantee success of the MAS. The present study was undertaken to study the suitability of the SSR markers from the QTL-hotspot region linked with drought tolerance related traits in different genetic background. The study of polymorphism of the QTL-hotspot linked SSR markers NCPGR127, NCPGR21, TAA170, ICCM0249, STMS11, TR11 and GA24 between drought tolerant genotype ICC-4958 and remaining 32 chickpea genotypes revealed that most of the genotypes had monomorphic alleles as that of ICC-4958, while only a few genotypes showed polymorphic alleles. The markers that are found polymorphic between ICC-4958 and other chickpea genotypes can be used directly for foreground selection in MAS as they are mapped in the QTL-hotspot region. However, in cases where these are monomorphic, additional markers from QTL-hotspot region need to be screened. Besides validating the suitability of these markers, we also validated SSR markers that can be used for the background selection. Of the 21 SSR markers, 15 were found polymorphic between ICC-4958 and other genotypes suggesting their usefulness in the background selection.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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