Genesis of the <i>Xenopus</i> Ancestor (IMAGE)

Hokkaido University

Genesis of the <i>Xenopus</i> Ancestor

Caption

Two ancestral species with nine pairs of chromosomes, S and L, mate to produce a hybrid S/L offspring with 18 chromosomes that do not pair. This sterile offspring undergoes whole genome duplication to produce a new fertile species with 18 pairs of chromosomes that is ancestral to all Xenopus species. For clarity, the process is rendered here with only one type of chromosome.

Credit

Copyright: 2016 Masanori Taira

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