Validation of SSR markers linked to oil content in groundnut (Arachis hypogaea L.)
VALIDATION OF SSR MARKERS LINKED TO OIL CONTENT IN GROUNDNUT
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Authors
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N DEVASENA
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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B K ANITHA
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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N MANIVANNAN
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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G NALLATHAMBI
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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P JANILA
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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M K PANDEY
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
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R K VARSHNEY
Department of Oilseeds, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu
Keywords:
Groundnut, Oil content, QTL, SSR markers, ValidationAbstract
A set of 14 SSR markers that are specific for six QTLs for oil content reported by various authors was selected for validation in the present study. The F4:5 mapping population of the cross ICGV 00440 x ICGV 03128 was used to validate the markers as well as QTLs specific for oil content. Among the selected markers, six markers were polymorphic for the parents ICGV 00440 and ICGV 03128. Among the six polymorphic SSR markers, two markers IPAHM103 and PGS16F10 revealed a strong association for oil content with a PVE of 15.3 and 19.6 respectively in single marker analysis. Validation of QTLs was also performed through composite interval mapping analysis. A QTL with flanking markers IPAHM103 and PM36 could be considered as a potential tool for marker assisted selection of the trait oil content in groundnut.
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