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The Journal of Heredity 2000:91(5)
© 2000 The American Genetic Association 91:416-417

Brief communication. Inheritance of flower color in chickpea

J Kumar1,*, NVS Vijayalakshmi2, and TN Rao2

1International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, A.P. 502 324, India 2Acharya N G Ranga Agricultural University, Rajendranagar, Hyderabad, India *Corresponding author E-mail: J.Kumar@CGIAR.org

Flower color is a useful morphological marker in chickpea (Cicer arietinum L.). Inheritance of this trait was studied using two white-flowered chickpea genotypes, P 9623 and RS 11, and one blue-flowered genotype, T 39-1. The genetic constitutions of the white flower colors of P 9623 and RS 11 were different, for in an earlier study their F1 produced pink flowers. The two F1s of the crosses P 9623 x T 39-1 and RS 11 x T 39-1 also produced pink flowers. Each of the two F2 populations segregated in 9 pink:3 blue:4 white-flowered plants. These results can be explained by a three-gene model. These results can be explained by a three-gene model. These three independently segregating genes are probably the same as C, B, and P reported in the literature earlier. Allelic tests could not be undertaken, as the genetic stocks used in the earlier studies are not available. The genetic constitutions of the three parents and their F1s are proposed. These accessions should be useful for conducting allelic tests for determining flower color loci in chickpea and for comparative studies with field pea. The seeds of these genetic stocks are maintained at the Genetic Resources and Enhancement Program at ICRISAT and are available for research purposes on request.


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