Polyploid Speciation in Asian Green Toads of the Genus Bufotes (Bufonidae)

Litvinchuk, Spartak N.; Skorinov, Dmitriy V.; Pasynkova, R. A.; Кидов, А. А.; Matushkina, K.A.; Borkin, L. Ya.; Rozanov, Yu. M.

doi:10.21685/2307-9150-2019-1-9

Cited by 3 publications

(2 citation statements)

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“…Such hybrids carry new characteristics that can be supported by adaptive selection. Often, polyploid individuals arise in hybrid lines (Hermaniuk et al., 2013; Litvinchuk et al., 2016, 2019). The reproduction of the clonal hybrids is associated with numerous difficulties, which can strongly reduce their fertility.…”

Section: Introductionmentioning

confidence: 99%

Genetic structure, morphological variation, and gametogenic peculiarities in water frogs ( Pelophylax ) from northeastern European Russia

Svinin

Dedukh

Borkin

et al. 2021

J. Zool. Syst. Evol. Res.

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Section: Introductionmentioning

confidence: 99%

Genetic structure, morphological variation, and gametogenic peculiarities in water frogs ( Pelophylax ) from northeastern European Russia

Svinin

Dedukh

Borkin

et al. 2021

J. Zool. Syst. Evol. Res.

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“…Prior to this report, tetraploid population of B. zamdaensis has not been identified in the karyotype. The individuals in this study were collected from the type locality of this species, and there is geographical isolation between these tetraploid populations and the previously reported triploid populations [40]. The discovery of tetraploid population in B. zamdaensis provides new evidence supporting the occurrence of multiple WGD events in the B. viridis complex.…”

Section: Karyotypic Differences and Phylogenetic Differentiationmentioning

confidence: 50%

Karyotypes of 10 Anuran Species from the Qinghai–Tibetan Plateau

Chen,

Shi,

et al. 2023

Diversity

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The Qinghai–Tibet Plateau (QTP) is the highest and largest mountain plateau in the world, which has become a focus area of amphibian biodiversity research and conservation, depending on its large number of endemic and threatened species. Among the 58 families of Anura, only a few species of four families (Megophryidae, Bufonidae, Dicroglossidae, Ranidae) are distributed in QTP. Revealing the genetic diversity of these species is crucial for research on their environmental adaptability and biodiversity conservation. Chromosome rearrangements are a critical source of genetic variation, which is recognized as a driver of speciation, providing the genetic material for differentiation and environmental adaptation of amphibians. Here, we identified the karyotypes of 10 species of the above families from the QTP. The karyotypes of these species were obtained from new sites that were not previously reported. Among them, the karyotypes of D. himalayanus and tetraploid B. zamdaensis were reported for the first time. In particular, the ploidy of B. zamdaensis from Zanda, China, was found to be distinctly different from the ploidy from Spiti River, India. This indicates that they have presented species differentiation and supports the multiple and complicated polyploidization events in the Bufotes toads. Furthermore, the different locations of the secondary constriction between the Weixi and Zhongdian populations of O. xiangchengensis support that there is a karyotypic variation between the two subspecies (O. xiangchengensis xiangchengensis vs. O. xiangchengensis deqinicus). A series of chromosomal variations may have facilitated the rapid evolution of amphibians in the QTP, and our study will provide support for further research on amphibian genetic diversity and biodiversity conservation.

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