Efficiency of RAPD markers in estimating the genetic relationship and development of DNA fingerprint in popular pigeonpea [Cajanus cajan (L.) Millsp.] cultivars

Choudhury, P.R. and Singh, I.P. and George, B. and Verma, A.K. and Kumari Jyoti, K. and Datt, S. and Gupta, G. and Singh, N.P. (2012) Efficiency of RAPD markers in estimating the genetic relationship and development of DNA fingerprint in popular pigeonpea [Cajanus cajan (L.) Millsp.] cultivars. Indian Journal of Genetics and Plant Breeding, 72 (3). pp. 309-317.

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Abstract

In the present study, estimation of genetic diversity and identification of pigeonpea cultivars and breeding lines has been done using 121 RAPD primers, among which 20 were polymorphic. A total of 1193 bands were obtained and 900 (75.4%) showed polymorphism between cultivars. On an average 9.85 bands per primer were obtained. Cluster analysis based on Jaccard's similarity coefficient using UPGMA grouped all the cultivars into three major clusters. The clustering was strongly supported by high bootstrap values. The arithmetic mean heterozygosity (Hav) value, the average heterozygosity for polymorphic markers (Hav) p value and marker index (MI) was found to be 0.499, 0.661 and 4.917 respectively. The genotype specific bands can provide information to separate pigeonpea cultivars among the 24 studied, which can definitely be of great help in pigeonpea cultivar identification for cultivar-right-protection.

Item Type: Article
Author Affiliation: Indian Institute of Pulses Research, Kanpur,Jawaharlal Nehru University, Jawaharlal Nehru University, Krishi Anusandhan Bhawan I, New Delhi, 110 012
Subjects: Crop Improvement
Divisions: Pigeonpea
Depositing User: Mr. SanatKumar Behera
Date Deposited: 29 Sep 2012 07:40
Last Modified: 29 Sep 2012 07:40
Official URL: http://www.indianjournals.com/ijor.aspx?target=ijo...
URI: http://eprints.icrisat.ac.in/id/eprint/8150

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