Integrative morphological and genomic analyses reveal diversity, reticulate evolution, and adaptation in diploid and tetraploid Rosa species from Xinjiang.

Abstract excerpt

Xinjiang, with extensive mountain systems and desert basins, forms a major biogeographic corridor between East and Central Asia and harbors taxonomically challenging wild Rosa species. We analyzed 252 accessions (159 diploids, 93 tetraploids) and integrated morphometrics, ploidy estimates, and whole-genome resequencing. PCA of 14 quantitative traits revealed extensive overlap, especially between diploid R....

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