A bisexually reproducing all-triploid vertebrate.

Abstract:

:Green toads are common in the Palaearctic region, where they have differentiated into several taxa. The toads exist with variable amounts of ploidy, similar to other anuran species or reptiles. In vertebrate biology, the very rare occurrence of triploidy is coupled with infertility or unisexuality, or requires the coexistence of individuals of different ploidy in a reproductive community. The reproduction of naturally occurring triploids has been reported to occur only through parthenogenesis, gynogenesis or hybridogenesis. The bisexual reproduction of pure triploids has been considered to be impossible because of the problem of equally distributing three chromosome sets in meiosis. Here we report geographically isolated populations of green toads (Bufo viridis complex) that are all-triploid and reproduce bisexually.

journal_name

Nat Genet

journal_title

Nature genetics

authors

Stöck M,Lamatsch DK,Steinlein C,Epplen JT,Grosse WR,Hock R,Klapperstück T,Lampert KP,Scheer U,Schmid M,Schartl M

doi

10.1038/ng839

keywords:

subject

Has Abstract

pub_date

2002-03-01 00:00:00

pages

325-8

issue

3

eissn

1061-4036

issn

1546-1718

pii

ng839

journal_volume

30

pub_type

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