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

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Relation http://oar.icrisat.org/6081/
http://maxwellsci.com/jp/abstract.php?jid=AJAS&no=220&abs=02
 
Title Introgression of Helicoverpa armigera Resistance from Cajanus acutifolius-a Wild Relative from Secondary Gene Pool of Pigeon Pea (Cajanus cajan)
 
Creator Jadhav, D R
Mallikarjuna, N
Sharma, H C
Saxena, K B
 
Subject Pigeonpea
 
Description 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.
 
Publisher MAXWELL Science Publication
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/6081/1/AJAS_4_4_242-248_2012.pdf
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