Limited intrinsic postzygotic reporductive isolation despite chromosomal rearrangements between closely related sympatric species of small ermine moths (Lepidoptera: Yponomeutidae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00506006" target="_blank" >RIV/60077344:_____/19:00506006 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/biolinnean/article/128/1/44/5522600" target="_blank" >https://academic.oup.com/biolinnean/article/128/1/44/5522600</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/biolinnean/blz090" target="_blank" >10.1093/biolinnean/blz090</a>
Alternative languages
Result language
angličtina
Original language name
Limited intrinsic postzygotic reporductive isolation despite chromosomal rearrangements between closely related sympatric species of small ermine moths (Lepidoptera: Yponomeutidae)
Original language description
In evolutionarily young species and sympatric host races of phytophagous insects, postzygotic incompatibility is often not yet fully developed, but reduced fitness of hybrids is thought to facilitate further divergence. However, empirical evidence supporting this hypothesis is limited. To assess the role of reduced hybrid fitness, we studied meiosis and fertility in hybrids of two closely related small ermine moths, Yponomeuta padella and Yponomeuta cagnagella, and determined the extent of intrinsic postzygotic reproductive isolation. We found extensive rearrangements between the karyotypes of the two species and irregularities in meiotic chromosome pairing in their hybrids. The fertility of reciprocal F1 and, surprisingly, also of backcrosses with both parental species was not significantly decreased compared with intraspecific offspring. The results indicate that intrinsic postzygotic reproductive isolation between these closely related species is limited. We conclude that the observed chromosomal rearrangements are probably not the result of an accumulation of postzygotic incompatibilities preventing hybridization. Alternative explanations, such as adaptation to new host plants, are discussed.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10603 - Genetics and heredity (medical genetics to be 3)
Result continuities
Project
<a href="/en/project/GA17-13713S" target="_blank" >GA17-13713S: Driving forces behind the evolution of lepidopteran W chromosomes</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Biological Journal of the Linnean Society
ISSN
0024-4066
e-ISSN
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Volume of the periodical
128
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
44-58
UT code for WoS article
000482418500004
EID of the result in the Scopus database
2-s2.0-85070797758