Results 21 to 30 of about 63,195 (262)

Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus [PDF]

, 2020
Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation.
Booker, William, Brennan, Ian G., Donnellan, Stephen C., Doughty, Paul, Keogh, J. Scott, Lemmon, Alan R., Mahony, Michael, Moriarty Lemmon, Emily, Novikova, Polina, Roberts, J. Dale, Van de Peer, Yves, Yant, Levi   +11 more
core   +4 more sources

Rapid speciation with gene flow following the formation of Mt. Etna. [PDF]

Genome Biol Evol, 2013
Environmental or geological changes can create new niches that drive ecological species divergence without the immediate cessation of gene flow. However, few such cases have been characterized. On a recently formed volcano, Mt. Etna, Senecio aethnensis and S.
Osborne OG, Batstone TE, Hiscock SJ, Filatov DA.   +3 more
europepmc   +5 more sources

Whole-Genome Diversification Analysis of the Hornbeam Species Reveals Speciation and Adaptation Among Closely Related Species

Frontiers in Plant Science, 2021
Speciation is the key evolutionary process for generating biological diversity and has a central place in evolutionary and ecological research. How species diverge and adapt to different habitats is one of the most exciting areas in speciation studies ...
Zeyu Zheng, Ying Li, Minjie Li, Guiting Li, Xin Du, Hu Hongyin, Mou Yin, Zhiqiang Lu, Xu Zhang, Nawal Shrestha, Jianquan Liu, Yongzhi Yang   +11 more
doaj   +1 more source

Genome-wide tests for introgression between cactophilic Drosophila implicate a role of inversions during speciation [PDF]

, 2015
K.L. was funded by a junior research fellowship from the National Environmental Research Council, UK (NE/I020288/1, NBAF659).Models of speciation-with-gene-flow have shown that the reduction in recombination between alternative chromosome arrangements ...
Clarke, M., Etges, W.J., Lohse, K., Ritchie, M.G.   +3 more
core   +3 more sources

Continuing fragmentation of a widespread species by geographical barriers as initial step in a land snail radiation on crete. [PDF]

PLoS ONE, 2013
The phylogeographic structure of the land snail Xerocrassa mesostena on Crete inferred from AFLP markers and mitochondrial cox1 sequences can be explained by three mechanisms: gene flow restriction, population expansion and leptokurtic dispersal.
Jan Sauer, Jens Oldeland, Bernhard Hausdorf   +2 more
doaj   +1 more source

Evaluation of genetic isolation within an island flora reveals unusually widespread local adaptation and supports sympatric speciation [PDF]

, 2014
It is now recognized that speciation can proceed even when divergent natural selection is opposed by gene flow. Understanding the extent to which environmental gradients and geographical distance can limit gene flow within species can shed light on the ...
Alexander S. T. Papadopulos, Burnham KP, Clausen J, Csiba L, Céline Devaux, Doebeli M, Doyle JJ, Fox J, Green PS, Helen Hipperson, Ian Hutton, Jackie Lighten, Jenkins DG, Luke T. Dunning, Maria Kaye, Papadopulos AST, Pickard J, Pritchard JK, R Development Core Team, Roger K. Butlin, Schluter D, Vincent Savolainen, William J. Baker, Wright S   +23 more
core   +3 more sources

Perfect association between spatial swarm segregation and the X-chromosome speciation island in hybridizing Anopheles coluzzii and Anopheles gambiae populations

Scientific Reports, 2022
The sibling species An. coluzzii and An. gambiae s.s. are major malaria vectors thought to be undergoing sympatric speciation with gene flow. In the absence of intrinsic post-zygotic isolation between the two taxa, speciation is thought possible through ...
Abdoulaye Niang, Hamidou Maïga, Simon P. Sawadogo, Lassana Konaté, Ousmane Faye, Yoosook Lee, Roch K. Dabiré, Abdoulaye Diabaté, Frederic Tripet   +8 more
doaj   +1 more source

Divergence With Gene Flow and Contrasting Population Size Blur the Species Boundary in Cycas Sect. Asiorientales, as Inferred From Morphology and RAD-Seq Data

Frontiers in Plant Science, 2022
The divergence process of incipient species is fascinating but elusive by incomplete lineage sorting or gene flow. Species delimitation is also challenging among those morphologically similar allopatric species, especially when lacking comprehensive data.
Jui-Tse Chang, Chien-Ti Chao, Koh Nakamura, Hsiao-Lei Liu, Min-Xin Luo, Pei-Chun Liao   +5 more
doaj   +1 more source

Geography, assortative mating, and the effects of sexual selection on speciation with gene flow. [PDF]

Evol Appl, 2016
AbstractTheoretical and empirical research on the evolution of reproductive isolation have both indicated that the effects of sexual selection on speciation with gene flow are quite complex. As part of this special issue on the contributions of women to basic and applied evolutionary biology, I discuss my work on this question in the context of a ...
Servedio MR.
europepmc   +4 more sources

A complex speciation-richness relationship in a simple neutral model [PDF]

, 2012
Speciation is the "elephant in the room" of community ecology. As the ultimate source of biodiversity, its integration in ecology's theoretical corpus is necessary to understand community assembly.
Elderkin, Mark F., LeBlanc, Nathalie M., Mallory, Mark L., Mittelhauser, Glen, Mockford, Stephen, Paquet, Julie, Pálsson, Snæbjörn, Robertson, Gregory J., Stewart, Donald T., Summers, Ron W., Tudor, Lindsay   +10 more
core   +2 more sources