What question did this study set out to answer?

To identify genomic regions, quantitative trait loci (QTLs), and potential candidate genes conferring heat stress tolerance in chickpea.

July 26, 2021Frontiers in Plant ScienceOpen Access

Major QTLs and Potential Candidate Genes for Heat Stress Tolerance Identified in Chickpea (Cicer arietinum L.)

View Full Paper

Ask AI

Bookmark

Authors

UJUday Chand JhaKansas State University HNHarsh NayyarPanjab University RPRamesh PalakurthiNational Institute of Plant Genome Research

Discussion

Member takes

Implication

Genetic mapping uncovers major quantitative trait loci and candidate genes for heat tolerance in chickpea, highlighting key targets for breeding climate-resilient crops.

Key Points

To identify genomic regions, quantitative trait loci (QTLs), and potential candidate genes conferring heat stress tolerance in chickpea.
Phenotyped a recombinant inbred line population derived from DCP 92-3 (sensitive) and ICCV 92944 (tolerant) across normal and heat-stressed field conditions over two consecutive years (2017 and 2018).
Constructed a 788-SNP genetic map spanning 1,125 cM using genotyping-by-sequencing and performed composite interval mapping across 13 traits.
Identified 77 QTLs (37 major and 40 minor) across 12 traits, including a CaLG07 locus explaining >30% phenotypic variation for days to pod initiation and 100-seed weight, and >10% for nitrogen balance index.
Identified novel major QTLs for physiological proxy traits, including chlorophyll content, nitrogen balance index, NDVI, and cell membrane stability.
Detected 32 candidate genes within QTL intervals encoding heat shock proteins, heat shock transcription factors, flowering time regulators, and pollen-specific factors.

Cite This Study

Jha et al. (2021) studied this question.

synapsesocial.com/papers/6a89cc8ca90c2f4c44fba86e https://doi.org/10.3389/fpls.2021.655103

View Full Paper

Ask AI

Bookmark

Implication

Genetic mapping uncovers major quantitative trait loci and candidate genes for heat tolerance in chickpea, highlighting key targets for breeding climate-resilient crops.

Major QTLs and Potential Candidate Genes for Heat Stress Tolerance Identified in Chickpea (Cicer arietinum L.)

Discussion

Member takes

Implication

Key Points

Cite This Study

Major QTLs and Potential Candidate Genes for Heat Stress Tolerance Identified in Chickpea (Cicer arietinum L.)

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider