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Journal article
Meta-analysis of the quantitative trait loci associated with agronomic traits, fertility restoration, disease resistance, and seed quality traits in pigeonpea (Cajanus cajan L.)
The plant genome, Vol.16(3), e20342
2023
PMID: 37328945
Abstract
A meta-analysis of quantitative trait loci (QTLs), associated with agronomic traits, fertility restoration, disease resistance, and seed quality traits was conducted for the first time in pigeonpea (Cajanus cajan L.). Data on 498 QTLs was collected from 9 linkage mapping studies (involving 21 biparental populations). Of these 498, 203 QTLs were projected onto "PigeonPea_ConsensusMap_2022," saturated with 10,522 markers, which resulted in the prediction of 34 meta-QTLs (MQTLs). The average confidence interval (CI) of these MQTLs (2.54 cM) was 3.37 times lower than the CI of the initial QTLs (8.56 cM). Of the 34 MQTLs, 12 high-confidence MQTLs with CI (<= 5 cM) and a greater number of initial QTLs (>= 5) were utilized to extract 2255 gene models, of which 105 were believed to be associated with different traits under study. Furthermore, eight of these MQTLs were observed to overlap with several marker-trait associations or significant SNPs identified in previous genome-wide association studies. Furthermore, synteny and ortho-MQTL analyses among pigeonpea and four related legumes crops, such as chickpea, pea, cowpea, and French bean, led to the identification of 117 orthologous genes from 20 MQTL regions. Markers associated with MQTLs can be employed for MQTL-assisted breeding as well as to improve the prediction accuracy of genomic selection in pigeonpea. Additionally, MQTLs may be subjected to fine mapping, and some of the promising candidate genes may serve as potential targets for positional cloning and functional analysis to elucidate the molecular mechanisms underlying the target traits.
Details
- Title
- Meta-analysis of the quantitative trait loci associated with agronomic traits, fertility restoration, disease resistance, and seed quality traits in pigeonpea (Cajanus cajan L.)
- Authors/Creators
- Priyanka Halladakeri - Anand Agricultural UniversitySantosh Gudi - Punjab Agricultural UniversitySabina Akhtar - American University in the EmiratesGurjeet Singh - Punjab Agricultural UniversityDinesh Kumar Saini - Punjab Agricultural UniversityHarshavardan J. Hilli - Punjab Agricultural UniversityAmar Sakure - Anand Agricultural UniversitySneha Macwana - Anand Agricultural UniversityReyazul Rouf Mir - Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir
- Publication Details
- The plant genome, Vol.16(3), e20342
- Publisher
- Wiley Periodicals LLC on behalf of Crop Science Society of America.
- Number of pages
- 16
- Grant note
- Minority Welfare Department, Govt. of Karnataka, India Indian Council of Agricultural Research (ICAR), New Delhi, India; Indian Council of Agricultural Research (ICAR) Department of Science and Technology (DST), New Delhi, India; Department of Science & Technology (India)
- Identifiers
- 991005722669707891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Genetics & Heredity
- Plant Sciences
- ESI research areas
- Plant & Animal Science