Genetic divergence studies in pearl millet [Pennisetum glaucum L.(R.) Br.] inbred lines

Bhardwaj, R and Garg, T and Malik, E A and Vikal, Y and Sohu, R S and Gupta, S K (2018) Genetic divergence studies in pearl millet [Pennisetum glaucum L.(R.) Br.] inbred lines. Indian Journal of Genetics and Plant Breeding (TSI), 78 (3). pp. 382-385. ISSN 0975-6906

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Abstract

In the present investigation genetic diversity amongst 190 pearl millet accessions viz., 95 maintainer (B line) and 95 restorer lines (R line) was analyzed using SSR markers. A total of 40 SSR primers were used for screening, out of which 34 were polymorphic. PIC value ranged from 0.002 (PSMP 2068) to 0.749 (CTM 60) with an average of 0.445. AMOVA showed greater variance represented by individuals within the group (65%) and between group (B and R lines) variance was <35%. The neighbor joining tree based on dissimilarity matrix of germplasm lines differentiated B from R lines into two major clusters with few exceptions of R lines grouping with B lines and vice versa. Genetic dissimilarity estimates ranged from 0.12 (RPR 22; IPC 917) to 0.85 (ICMR 10222; ICMB 97333). The maintainers ICMB 97333, RPB 6 and ICMB 92777 and restorers ICMR 10222, RPR 25, RPR 56, RPR 62 and RPR 40 were identified as most distinct and divergent which could be used as parents for heterosis breeding.

Item Type:	Article
Divisions:	Research Program : Asia
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Genetic diversity, maintainers, restorer, pearl millet, AMOVA
Subjects:	Mandate crops > Millets > Pearl Millet
Depositing User:	Mr T L Gautham
Date Deposited:	18 Sep 2018 09:04
Last Modified:	05 Aug 2019 09:41
URI:	http://oar.icrisat.org/id/eprint/10854
Official URL:	http://dx.doi.org/10.31742/IJGPB.78.3.16
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
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