ArticleFrontiers in plant science2025
Environmental pressures shape regional patterns of genetic diversity and ancestry in cotton landraces.
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 2 papers.
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2 citing papers in PubMed.
- Genomic characterization of a MAGIC population containing introgressions from four tetraploid Gossypium species.The plant genome · 2026Article
- Genomic Sampling and Population Structure of Farmer-Maintained Varieties Reveal Previously Uncharacterized Diversity of Theobroma cacao L. in Costa Rica.Molecular ecology · 2026Article
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3 authors.
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Abstract
Upland cotton has undergone extensive domestication and breeding, leading to substantial genetic improvement but also a pronounced narrowing of its genetic base. To better characterize and leverage the diversity preserved in traditional gene pools, we examined the population structure, phylogenetic relationships, and genomic signatures of selection in a globally sourced panel of cotton landraces and elite cultivars. STRUCTURE and neighbor-joining analyses based on whole-genome SNP genotyping identified four ancestral populations divided into nine major clusters. The landrace accessions formed deep, regionally coherent lineages characterized by high heterozygosity and an abundance of private alleles. Consistent with these patterns, Nei's genetic distance and pairwise F
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