Introgression of Helicoverpa armigera Resistance from Cajanus acutifolius-a Wild Relative from Secondary Gene Pool of Pigeon Pea (Cajanus cajan)

Jadhav, D R and Mallikarjuna, N and Sharma, H C and Saxena, K B (2012) Introgression of Helicoverpa armigera Resistance from Cajanus acutifolius-a Wild Relative from Secondary Gene Pool of Pigeon Pea (Cajanus cajan). Asian Journal of Agricultural Sciences, 4 (4). pp. 242-248. ISSN 2041-3890

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Abstract

The aim of the study was to introgress Helicoverpa armigera resistance from wild relative Cajanus acutifolius into pigeonpea, (Cajanus cajan L.), an important grain legume in South Asia, East Africa and the West Indies. Pigeonpea grain yields on farmer’s fields are quite low, largely because of damage by insect pests, of which legume pod borer Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is the important pest worldwide. Pod borer has developed high levels of resistance to chemical insecticides. Currently, there are no cultivars of pigeonpea with high levels of resistance to H. armigera. Therefore, there is a need to identify and introgress resistance genes from the wild relatives of this crop. Wild relative of pigeonpea, Cajanus acutifolius (ICPW 15613) and the interspecific derivatives C. acutifolius x C. cajan have shown resistance to H. armigera. The results showed that all the test lines and C. acutifolius had high levels of flavonoids such as chlorogenic acid, quercetin and rutin in the flowers and buds, which may have resulted in less damage due to H. armigera larvae. Most of the test lines had more than 15.00 g of seed weight (100 seed weight) and beige seed color. These lines can be used for pigeonpea improvement for resistance to H. armigera.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Chlorogenic acid, flavonoids, Helicoverpa armigera, high seed weight, pigeonpea, pod borer,quercetin, resistance mechanisms, rutin
Subjects:	Mandate crops > Pigeonpea
Depositing User:	Mr Siva Shankar
Date Deposited:	13 Aug 2012 09:58
Last Modified:	05 Oct 2012 06:37
URI:	http://oar.icrisat.org/id/eprint/6081
Official URL:	http://maxwellsci.com/jp/abstract.php?jid=AJAS&no=...
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	The authors thank Mr. Srinivasu Kurella of Resilient Dryland Systems and the support staff of Legume Cell Biology Unit of Grain Legumes Program, ICRISAT, for technical assistance. We wish to thank Dr. CLL. Gowda, Program Director, Grain Legumes, ICRISAT, for the facilities to carry out the experimental study.
Links:	Author

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