Divergence with gene flow across a speciation continuum of Heliconius butterflies [PDF]
BMC Evolutionary Biology, 2015 AbstractBackgroundA key to understanding the origins of species is determining the evolutionary processes that drive the patterns of genomic divergence during speciation. New genomic technologies enable the study of high-resolution genomic patterns of divergence across natural speciation continua, where taxa pairs with different levels of reproductive ...
Megan A. Supple +4 more
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Ecology and EvolutionThe grass genus Orinus, endemic to the Qinghai‐Tibet Plateau (QTP), has long been taxonomically controversial. Recent integrative studies combining morphological and DNA barcoding proposed revising the genus from six to three species; however, this ...
Ai Liu +7 more
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The Origin of a New Sex Chromosome by Introgression between Two Stickleback Fishes. [PDF]
, 2019 Introgression is increasingly recognized as a source of genetic diversity that fuels adaptation. Its role in the evolution of sex chromosomes, however, is not well known. Here, we confirm the hypothesis that the Y chromosome in the ninespine stickleback,
Abbott +78 more
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Gene flow mediates the role of sex chromosome meiotic drive during complex speciation
eLife, 2018 During speciation, sex chromosomes often accumulate interspecific genetic incompatibilities faster than the rest of the genome. The drive theory posits that sex chromosomes are susceptible to recurrent bouts of meiotic drive and suppression, causing the ...
Colin D Meiklejohn +10 more
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Radiating on oceanic islands: patterns and processes of speciation in the land snail genus Theba (Risso 1826). [PDF]
PLoS ONE, 2012 Island radiations have played a major role in shaping our current understanding of allopatric, sympatric and parapatric speciation. However, the fact that species divergence correlates with island size emphasizes the importance of geographic isolation ...
Carola Greve +4 more
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Intrinsic incompatibilities evolving as a by-product of divergent ecological selection : Considering them in empirical studies on divergence with gene flow [PDF]
, 2017 The possibility of intrinsic barriers to gene flow is often neglected in empirical research on local adaptation and speciation with gene flow, for example when interpreting patterns observed in genome scans.
Kulmuni, J., Westram, A. M.
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Introgressive Hybridization and the Evolution of Lake-Adapted Catostomid Fishes. [PDF]
, 2016 Hybridization has been identified as a significant factor in the evolution of plants as groups of interbreeding species retain their phenotypic integrity despite gene exchange among forms.
Carson, Evan W +5 more
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On the relative ease of speciation with periodic gene flow [PDF]
, 2019 A bstract Common models of speciation with gene flow consider constant migration or admixture on secondary contact, but earth’s recent climatic history suggests many populations have experienced cycles of isolation and contact over the last million years.
Linck, Ethan, Battey, C.J.
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Shedding Light on the Grey Zone of Speciation along a Continuum of Genomic Divergence.
PLoS Biology, 2016 Speciation results from the progressive accumulation of mutations that decrease the probability of mating between parental populations or reduce the fitness of hybrids-the so-called species barriers.
Camille Roux +5 more
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A Conceptualist View in the Metaphysics of Species [PDF]
, 2019 The species concept is one of the central concepts in biological science. Although modern systematics speculates about the existence of a complex hierarchy of nested taxa, biological species are considered particularly important for the active role they ...
De Florio, Ciro, Frigerio, Aldo
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