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The Journal of Heredity 1988:79(3):170-174
© 1988 The American Genetic Association 79:170-174

research-article

Inheritance and Geographical Distribution of Allozyme Polymorphisms in Chickpea (Cicer arietinum L.)

S. Tuwafe, A. L. Kahier, A. Boe, and M. Ferguson

Department of Plant Science, South Dakota State University Brookings
USDA, ARS-NGIRL Brookings

Address reprint requests to Dr. Kahier, Garst Seed Company, P.O. Box 500, Slater, LA 50244.

Abstract

Chickpea (Cicer arietinum L.) germ plasm accessions from 25 countries were assayed electrophoretically to determine the inheritance relationships of observed isozyme polymorphisms and the patterns of distribution of allozyme polymorphisms among accessions from different countries. Assays were conducted using six enzyme systems: acid phosphatase (ACP), esterase (EST), malate dehydrogenase (MDH), alcohol dehydrogenase (ADH), 6-phosphogluconate dehydrogenase (PGD), and peroxidase (PRX). Chl-square goodness-of-fit tests verified single-locus segregation for the four enzyme marker loci Adh1, Pgd1, Pgd2, and Prx1. Two-locus chl-square tests showed that Adh1 is Inherited independently of both Pgd1 and Pgd2. Enzymes ACP, EST, and MDH were fixed monomorphic in all the accessions assayed. Genetic distance analyses showed that the greatest genetic diversity was associated with germ plasm originating from Middle Eastern, Asian, and east African countries. These areas are important locations for collecting and preserving important germ plasm resources of chickpea.


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