NDLI: FROM CLONAL TO SEXUAL HYBRIDS: GENETIC RECOMBINATION VIA TRIPLOIDS IN ALL-HYBRID POPULATIONS OF WATER FROGS

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FROM CLONAL TO SEXUAL HYBRIDS: GENETIC RECOMBINATION VIA TRIPLOIDS IN ALL-HYBRID POPULATIONS OF WATER FROGS

Content Provider	Scilit
Author	Christiansen, Ditte G. Reyer, Heinz-Ulrich
Copyright Year	2009
Description	Journal: Evolution Speciation via interspecific hybrids is very rare in animals, as compared to plants. Whereas most plants overcome the problem of meiosis between different chromosome sets by tetraploidization, animal hybrids often escape hybrid sterility by clonal reproduction. This comes at the expense of genetic diversity and the ability to purge deleterious mutations. However, here we show that all-hybrid populations of diploid (LR) and triploid (LLR and LRR) water frogs (Pelophylax esculentus) have secondarily acquired sexual reproduction. First, in a crossing experiment analyzed with microsatellite markers, triploid hybrids of both sexes and genotypes (LLR and LRR) recombined their homospecific genomes. Second, the great majority of natural populations investigated had low multilocus linkage isequilibrium, indicating a high recombination rate. As predicted from mating system models, the L genome had constant, low levels of linkage disequilibrium, whereas linkage disequilibrium in th\ud e R genome showed a significant reduction with increasing proportion of recombining triploids. This direct evidence of sexual reproduction in P. esculentus calls\ud for a change of the conventional view of hybridogens as clonally reproducing diploids. Rather, hybridogens can be independent sexually reproducing units with an evolutionary potential
Related Links	https://www.zora.uzh.ch/id/eprint/24667/1/262.pdf http://www.zora.uzh.ch/id/eprint/24667/1/262.pdf http://onlinelibrary.wiley.com/doi/10.1111/j.1558-5646.2009.00673.x/pdf
Ending Page	1768
Page Count	15
Starting Page	1754
e-ISSN	15585646
DOI	10.1111/j.1558-5646.2009.00673.x
Journal	Evolution
Issue Number	7
Volume Number	63
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2009-07-01
Access Restriction	Open
Subject Keyword	Journal: Evolution Evolutionary Biology Pelophylax Esculentus
Content Type	Text
Resource Type	Article

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Genotype‐temperature interactions on larval performance shape population structure in hybridogenetic water frogs (Pelophylax esculentuscomplex)

Variation in hybridogenetic hybrid emergence between populations of water frogs from the Pelophylax esculentus complex

Body size variation in hybrids among populations of European water frogs (Pelophylax esculentus complex) with different breeding systems

Data from: Genetic diversity and distribution patterns of diploid and polyploid hybrid water frog populations (Pelophylax esculentus complex) across Europe (Dataset)

Gamete production patterns, ploidy, and population genetics reveal evolutionary significant units in hybrid water frogs (Pelophylax esculentus)

Population systems of Eurasian water frogs (Pelophylax) in the south of Ukraine

Age structure, size and growth rate of water frogs from central European natural Pelophylax ridibundus-Pelophylax esculentus mixed populations estimated by skeletochronology

Population genomics of an exceptional hybridogenetic system of Pelophylax water frogs

Are the hibernating water frogs from Pelophylax (Rana) esculentus complex (from North-Western Romania) able to adapt to the thermal water conditions?

FROM CLONAL TO SEXUAL HYBRIDS: GENETIC RECOMBINATION VIA TRIPLOIDS IN ALL-HYBRID POPULATIONS OF WATER FROGS

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Genotype‐temperature interactions on larval performance shape population structure in hybridogenetic water frogs (Pelophylax esculentuscomplex)

Variation in hybridogenetic hybrid emergence between populations of water frogs from the Pelophylax esculentus complex

Body size variation in hybrids among populations of European water frogs (Pelophylax esculentus complex) with different breeding systems

Data from: Genetic diversity and distribution patterns of diploid and polyploid hybrid water frog populations (Pelophylax esculentus complex) across Europe (Dataset)

Gamete production patterns, ploidy, and population genetics reveal evolutionary significant units in hybrid water frogs (Pelophylax esculentus)

Population systems of Eurasian water frogs (Pelophylax) in the south of Ukraine

Age structure, size and growth rate of water frogs from central European natural Pelophylax ridibundus-Pelophylax esculentus mixed populations estimated by skeletochronology

Population genomics of an exceptional hybridogenetic system of Pelophylax water frogs

Are the hibernating water frogs from Pelophylax (Rana) esculentus complex (from North-Western Romania) able to adapt to the thermal water conditions?

FROM CLONAL TO SEXUAL HYBRIDS: GENETIC RECOMBINATION VIA TRIPLOIDS IN ALL-HYBRID POPULATIONS OF WATER FROGS