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Development of trait-specific genetic stocks derived from wild Cicer species as novel sources of resistance to important diseases for chickpea improvement

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Relation http://oar.icrisat.org/12515/
https://www.cambridge.org/core/journals/plant-genetic-resources/article/development-of-traitspecific-genetic-stocks-derived-from-wild-cicer-species-as-novel-sources-of-resistance-to-important-diseases-for-chickpea-improvement/6B7CFC48E7E197042752BE10C7A58835
https://doi.org/10.1017/S1479262123001004
 
Title Development of trait-specific genetic stocks derived from wild Cicer species as novel sources of resistance to important diseases for chickpea improvement
 
Creator Sharma, S
Sharma, M
 
Subject Chickpea
Plant Pathology
 
Description Low level of resistance to major diseases such as ascochyta blight (AB), botrytis grey mould (BGM) and dry root rot (DRR) in the cultivated chickpea genepool necessitates harnessing wild Cicer species. Sixty-eight accessions belonging to eight annual wild Cicer species and seven chickpea cultivars were screened for AB, BGM and DRR under controlled environmental conditions over the years. Intra-accession variability was observed among wild Cicer accessions for each disease. Hence, progenies of single resistant plants were selected for further evaluations and the trait-specific genetic stocks (TGS) were developed for each disease after re-screening following the single seed descent method. For AB, a high level of resistance was identified in four accessions belonging to tertiary genepool species, ICC 17334 (Cicer judaicum), ICC 17302, ICC 17308 and ICC 20177 (C. bijugum). Nine accessions, ICC 17160, ICC 17264, ICC 17270, ICC 20170, ICC 20186, ICC 20225, ICC 20247, ICC 20251 and IG 72941 of primary (C. reticulatum) and one accession, ICC 20190 of secondary (C. echinospermum)
genepool species were resistant to BGM whereas, four accessions, ICC 20187 (C. reticulatum) and ICC 20218, ICC 20244 and ICC 20257 (C. echinospermum) were resistant to DRR. Development and utilization of these TGS in chickpea pre-breeding will assist in developing disease-resistant chickpea cultivars with broad genetic base.
 
Publisher Cambridge University Press
 
Date 2023-12-20
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by_nc_nd
 
Identifier http://oar.icrisat.org/12515/1/Plant%20Genetic%20Resources_21_6_520-526_2023.pdf
Sharma, S and Sharma, M (2023) Development of trait-specific genetic stocks derived from wild Cicer species as novel sources of resistance to important diseases for chickpea improvement. Plant Genetic Resources, 21 (6). pp. 520-526. ISSN 1479-263X