Results 11 to 20 of about 63,195 (262)

Speciation with gene flow on Lord Howe Island. [PDF]

Proc Natl Acad Sci U S A, 2011
Understanding the processes underlying the origin of species is a fundamental goal of biology. It is widely accepted that speciation requires an interruption of gene flow between populations: ongoing gene exchange is considered a major hindrance to population divergence and, ultimately, to the evolution of new species.
Papadopulos AS, Baker WJ, Crayn D, Butlin RK, Kynast RG, Hutton I, Savolainen V.   +6 more
europepmc   +6 more sources

Speciation-With-Gene-Flow

PLANTS, PEOPLE, PLANET
Societal Impact Statement Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Scott P. Egan, Glen Ray Hood, Jocelyn R. Holt, Rafael Marcondes, Jeffrey L. Feder   +4 more
wiley   +4 more sources

Sexual selection and magic traits in speciation with gene flow [PDF]

Current Zoology, 2012
The extent to which sexual selection is involved in speciation with gene flow remains an open question and the subject of much research. Here, we propose that some insight can be gained from considering the concept of magic traits (i.e., traits involved ...
Maria R. SERVEDIO, Michael KOPP
doaj   +5 more sources

Speciation with gene flow in an island endemic hummingbird. [PDF]

PNAS Nexus
Abstract We examined speciation in streamertail hummingbirds (Trochilus polytmus and Trochilus scitulus), Jamaican endemic taxa that challenge the rule that bird speciation cannot progress in situ on small islands. Our analysis shows that divergent selection acting on male bill color, a sexual ornament that is red in polytmus and black ...
Judy CD, Graves GR, McCormack JE, Stryjewski KF, Brumfield RT.   +4 more
europepmc   +3 more sources

Speciation with gene flow in equids despite extensive chromosomal plasticity. [PDF]

Proc Natl Acad Sci U S A, 2014
Significance Thirty years after the first DNA fragment from the extinct quagga zebra was sequenced, we set another milestone in equine genomics by sequencing its entire genome, along with the genomes of the surviving equine species.
Jónsson H, Schubert M, Seguin-Orlando A, Ginolhac A, Petersen L, Fumagalli M, Albrechtsen A, Petersen B, Korneliussen TS, Vilstrup JT, Lear T, Myka JL, Lundquist J, Miller DC, Alfarhan AH, Alquraishi SA, Al-Rasheid KA, Stagegaard J, Strauss G, Bertelsen MF, Sicheritz-Ponten T, Antczak DF, Bailey E, Nielsen R, Willerslev E, Orlando L.   +25 more
europepmc   +7 more sources

Speciation with gene flow in marine systems [PDF]

Contributions to Zoology, 2019
Over the last century, a large body of literature emerged on mechanisms driving speciation. Most of the research into these questions focussed on terrestrial systems, while research in marine systems lagged behind. Here, we review the population genetic mechanisms and geographic context of 33 potential cases of speciation with gene flow in the marine ...
Potkamp, Gerrit, Fransen, Charles H.J.M.
openaire   +4 more sources

Isolation and gene flow in a speciation continuum in newts [PDF]

Molecular Phylogenetics and Evolution, 2016
Abstract Because reproductive isolation often evolves gradually, differentiating lineages may retain the potential for genetic exchange for prolonged periods, providing an opportunity to quantify and understand the fundamental role of gene flow during speciation.
Pabijan, Maciej, Zieliński, Piotr, Dudek, Katarzyna, Stuglik, Michał, Babik, Wiesław   +4 more
openaire   +4 more sources

Biogeographic Drivers of Evolutionary Radiations

Frontiers in Ecology and Evolution, 2021
Some lineages radiate spectacularly when colonizing a region, but others do not. Large radiations are often attributed to species’ adaptation into niches, or to other drivers, such as biogeography including dispersal ability and spatial structure of the ...
Ran Tao, Lawren Sack, James Rosindell
doaj   +1 more source

Host-plant adaptation as a driver of incipient speciation in the fall armyworm (Spodoptera frugiperda)

BMC Ecology and Evolution, 2022
Background Divergent selection on host-plants is one of the main evolutionary forces driving ecological speciation in phytophagous insects. The ecological speciation might be challenging in the presence of gene flow and assortative mating because the ...
Estelle Fiteni, Karine Durand, Sylvie Gimenez, Robert L. Meagher, Fabrice Legeai, Gael J. Kergoat, Nicolas Nègre, Emmanuelle d’Alençon, Kiwoong Nam   +8 more
doaj   +1 more source

Ten years of demographic modelling of divergence and speciation in the sea

Evolutionary Applications, 2023
Understanding population divergence that eventually leads to speciation is essential for evolutionary biology. High species diversity in the sea was regarded as a paradox when strict allopatry was considered necessary for most speciation events because ...
Aurélien De Jode, Alan Le Moan, Kerstin Johannesson, Rui Faria, Sean Stankowski, Anja Marie Westram, Roger K. Butlin, Marina Rafajlović, Christelle Fraïsse   +8 more
doaj   +1 more source