Data from: Chasing ghosts: allopolyploid origin of Oxyria sinensis (Polygonaceae) from its only diploid congener and an unknown ancestor

Xin Luo, Quanjun Hu, Pingping Zhou, Dan Zhang, Qian Wang, Richard J. Abbott, Yaling Wang & Jianquan Liu
Reconstructing the origin of a polyploid species is particularly challenging when an ancestor has become extinct. Under such circumstances, the extinct donor of a genome found in the polyploid may be treated as a ‘ghost’ species in that its prior existence is recognized through the presence of its genome in the polyploid. In this study, we aimed to determine the polyploid origin of Oxyria sinensis (2n = 40) for which only one congeneric species is...
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