ArticleFrontiers in plant science2025
Association mapping and identification of candidate genes for callus induction and regeneration using sorghum mature seeds.
Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Association mapping and candidate gene identification for drought tolerance in sorghum.Frontiers in plant science · 2025Article
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9 authors.
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Abstract
Introduction: A whole plant can be regenerated through tissue culture from an embryogenic callus in a process referred to as plant regeneration. Regeneration ability of embryogenic callus is a quantitative trait and the main limiting factor for genetic studies in sorghum. Methods: We evaluated 236 sorghum mini core varieties for callus induction rate, embryogenic callus rate, callus browning rate and differentiation rate and performed a multi-locus genome-wide association study (GWAS) of the four traits with 6,094,317 SNPs. Results: We found five mini core varieties most amenable to tissue culture manipulations: IS5667, IS24503, IS8348, IS4698, and IS5295.Furthermore, we mapped 34 quantitative trait loci (QTLs) to the four traits and identified 47 candidate genes. Previous studies provided evidence for the orthologs of 14 of these genes for their role in cellular function and embryogenesis and that the ortholog of WIND1 (WOUND INDUCED DEDIFFERENTIATION 1) identified in this study promotes callus formation and increases de novo shoot regeneration. Conclusion: These candidate genes will help to further understand the genetic basis of plant embryonic callus regeneration.
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