In vitro culture provides additional variation for pigeonpea

Chintapalli, P L and Sharma, K K and Moss, J P and Bhalla, J K (1997) In vitro culture provides additional variation for pigeonpea. In Vitro Cellular & Developmental Biology - Plant, 33 (1). pp. 30-37. ISSN 1054-5476 (Print) 1475-2689 (Online)

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Abstract

The present study is an attempt to exploit somaclonal variation for the varietal improvement of pigeonpea [Cajanus cajan (L) Millsp.]. The pigeonpea plants were regenerated from cotyledon explants, and their progeny was screened for variability. The regenerated R1 plants exhibited a spectrum of alterations in floral morphology and architecture that were absent in the control population. The field-sown R2 plants segregated for traits such as flower color, leaf shape, seed size, color and strophiolation, flowering habit, and fertility. Tissue culture produced different mutational events resulting in both dominant and recessive alleles. Significant variation was observed for plant height, seed mass, and damage due to the insect pest Helicoverpa armigera. The R3 plants, obtained from seed of R2 generation selected for traits such as white seed coat, strophiolation, reduced plant height, seed mass and low damage due to Helicoverpa, maintained the traits when compared with the seed-derived control populations. The results indicate a definite gene for white seed coat and the possibility of additional genes for pest tolerance and high seed mass in an adapted background.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Pigeonpea
Depositing User:	Ms Vibha Raju
Date Deposited:	31 Oct 2011 08:53
Last Modified:	31 Oct 2011 08:53
URI:	http://oar.icrisat.org/id/eprint/3447
Official URL:	http://dx.doi.org/10.1007/s11627-997-0037-3
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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