Genetic Diversity and Structure in Chickpea
Author Information
Author(s): Upadhyaya Hari D, Dwivedi Sangam L, Baum Michael, Varshney Rajeev K, Udupa Sripada M, Gowda Cholenahalli L L, Hoisington David, Singh Sube
Primary Institution: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
Hypothesis
This study aims to analyze the genetic structure, diversity, and allelic richness in a composite collection of chickpea using SSR markers.
Conclusion
The genotype-based reference set is a valuable resource for allele mining and breeding programs aimed at improving chickpea.
Supporting Evidence
- The study detected 1683 alleles in 2915 accessions using 48 SSR markers.
- Desi chickpea contained a higher proportion of rare alleles (53%) than kabuli (46%).
- The reference set captured 1315 (78%) of the 1683 alleles detected in the composite collection.
- Significant positive correlations were found between allele size and gene diversity.
- Wild Cicer accessions were more heterozygous (10.74%) than cultivated forms (0.49% to 1.14%).
- Accessions from Mediterranean regions showed higher genetic diversity than those from other regions.
- The study provides a comprehensive dataset for chickpea genetic diversity and structure.
Takeaway
Scientists studied a large number of chickpeas to understand their genetic differences, which can help grow better plants in the future.
Methodology
The study used 48 SSR markers to analyze 2915 chickpea accessions for genetic diversity and structure.
Limitations
The study may not capture all genetic diversity due to the limited number of accessions analyzed.
Participant Demographics
The study included 2915 chickpea accessions from various geographical regions.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website