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Reaping the Potential of Wild Cajanus Species through Pre-Breeding for Improving Resistance to Pod Borer, Helicoverpa armigera, in Cultivated Pigeonpea (Cajanus cajan (L.) Millsp.)

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Relation http://oar.icrisat.org/12318/
https://www.mdpi.com/2079-7737/11/4/485
https://doi.org/10.3390/biology11040485
 
Title Reaping the Potential of Wild Cajanus Species through
Pre-Breeding for Improving Resistance to Pod Borer, Helicoverpa armigera, in Cultivated Pigeonpea (Cajanus cajan (L.) Millsp.)
 
Creator Sharma, S
Jaba, J
Rao, P J
Prasad, S
Gopal, N T V V
Sharma, H C
Kilian, B
 
Subject Biotic Stress
Helicoverpa
Pigeonpea
 
Description Pod borer (Helicoverpa armigera) causes the highest yield losses in pigeonpea, followed by pod fly (Melanagromyza obtusa). High levels of resistance to pod borer are not available in the cultivated genepool. Several accessions of wild Cajanus species with strong resistance, and different resistance mechanisms (antixenosis and antibiosis) to pod borer have been identified. These accessions can be utilized to improve the pod borer resistance of cultivated pigeonpea. Using pod borer resistant Cajanus scarabaeoides and Cajanus acutifolius as pollen donors and popular pigeonpea varieties as recipients, pre-breeding populations were developed following simple- and complex-cross approaches. Preliminary evaluation of four backcross populations consisting of >2300 introgression lines (ILs) under un-sprayed field conditions resulted in identifying 156 ILs with low visual damage
rating scores (5.0–6.0) and low pod borer damage (
 
Publisher MDPI
 
Date 2022-03-22
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_attribution
 
Identifier http://oar.icrisat.org/12318/1/Biology_11_1_1-20_2022.pdf
Sharma, S and Jaba, J and Rao, P J and Prasad, S and Gopal, N T V V and Sharma, H C and Kilian, B (2022) Reaping the Potential of Wild Cajanus Species through Pre-Breeding for Improving Resistance to Pod Borer, Helicoverpa armigera, in Cultivated Pigeonpea (Cajanus cajan (L.) Millsp.). Biology, 11 (4). pp. 1-20. ISSN 2079-7737