Marker detection and genetic analysis for rust resistance of recombinant and backcross inbred lines in groundnut (Arachis hypogaea L.)

Published on Jun 20, 2018 11:56 AM

The present work was conducted to study the genetic
variation and identification of microsatellite markers linked
to rust resistance in groundnut. An F6mapping population
and three backcross populations (BC1F4, BC2F3 and BC3F2)
were developed from a cross between the susceptible parent
GPBD-5 and resistant parent GPBD-4. There were highly
significant differences among recombinants for reaction
to rust. A little difference was observed between PCV and
GCV for reaction to rust. High heritability coupled with
high genetic advance as per cent of mean was observed for
reaction to rust in F6, and backcross populations. Bulk
segregant analysis in the segregating population of GPBD-
5 x GPBD-4 indicated TC5A06 to be putatively linked to rust
resistance i.e., single marker analysis (SMA). This marker
can be used in marker assisted selection for rust resistance
in groundnut improvement program.

Keywords: Groundnut, rust resistance, genetic variation, bulk segregant analysis, SSR markers

Info

Year: 2014
Volume: 74
Issue: 2
Article DOI: 10.5958/0975-6906.2014.00158.8
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

Shridevi A. Jakkeral*, H. L. Nadaf, M. V. C. Gowda info_circle
R. S. Bhat info_circle
R. K. Patil info_circle
Babu Motagi, P. Kenchanagowda, Ganapati Mukri info_circle
B. Archana, Prakash Ganagshetty, K. Gangadhar and Lalitha Jaggal info_circle

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