Sperm divergence in a passerine contact zone: Indication of reinforcement at the gametic level
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F19%3A00499465" target="_blank" >RIV/68081766:_____/19:00499465 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/19:10394141 RIV/60076658:12310/19:43899153
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/evo.13677" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/evo.13677</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/evo.13677" target="_blank" >10.1111/evo.13677</a>
Alternative languages
Result language
angličtina
Original language name
Sperm divergence in a passerine contact zone: Indication of reinforcement at the gametic level
Original language description
Postcopulatory sexual selection may promote evolutionary diversification in sperm form, but the contribution of between‐species divergence in sperm morphology to the origin of reproductive isolation and speciation remains little understood. To assess the possible role of sperm diversification in reproductive isolation, we studied sperm morphology in two closely related bird species, the common nightingale (Luscinia megarhynchos) and the thrush nightingale (Luscinia luscinia), that hybridize in a secondary contact zone spanning Central and Eastern Europe. We found: (1) striking divergence between the species in total sperm length, accompanied by a difference in the length of the mitochondrial sperm component, (2) greater divergence between species in sperm morphology in sympatry than in allopatry, with evidence for character displacement in sperm head length detected in L. megarhynchos, (3) interspecific hybrids showing sperm with a length intermediate between the parental species, but no evidence for decreased sperm quality (the proportion of abnormal spermatozoa in ejaculates). Our results demonstrate that divergence in sperm morphology between the two nightingale species does not result in intrinsic postzygotic isolation, but may contribute to postcopulatory prezygotic isolation. This isolation could be strengthened in sympatry by reinforcement.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
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
Evolution
ISSN
0014-3820
e-ISSN
—
Volume of the periodical
73
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
202-213
UT code for WoS article
000458847800006
EID of the result in the Scopus database
2-s2.0-85059627345