Gene flow and diversification in a species complex ofAlcantareainselberg bromeliads
نویسندگان
چکیده
منابع مشابه
Gene flow and species delimitation.
A defining feature of species is that their constituting populations are connected by gene flow. However, interspecific gene flow (introgression) can affect species integrity. If some genome components were less prone to introgression than others, they should be particularly suitable to delimitate species. Recent simulation studies have predicted a negative correlation between intra- and inters...
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Interpopulational gene flow within a species can reduce population differentiation due to genetic drift, whereas genetic exchange among taxa can impede speciation. We used allozyme data to estimate gene flow within and among geographic races and species of perennial herbs in the Ipomopsis aggregata complex (Polemoniaceae). Estimates of interpopulational gene flow within taxa from two methods (F...
متن کاملSpecies Delimitation with Gene Flow.
Species are commonly thought to be evolutionarily independent in a way that populations within a species are not. In recent years, studies that seek to identify evolutionarily independent lineages (i.e., to delimit species) using genetic data have typically adopted multispecies coalescent approaches that assume that evolutionary independence is formed by the differential sorting of ancestral al...
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Multi-locus nuclear DNA data were used to delimit species of fringe-toed lizards of the Uma notata complex, which are specialized for living in wind-blown sand habitats in the deserts of southwestern North America, and to infer whether Quaternary glacial cycles or Tertiary geological events were important in shaping the historical biogeography of this group. We analyzed ten nuclear loci collect...
متن کاملThe Dynamics of Lateral Gene Transfer in Genus Leishmania - A Route for Adaptation and Species Diversification
BACKGROUND The genome of Leishmania major harbours a comparably high proportion of genes of prokaryote origin, acquired by lateral gene transfer (LGT). Some of these are present in closely related trypanosomatids, while some are detected in Leishmania only. We have evaluated the impact and destiny of LGT in genus Leishmania. METHODOLOGY/PRINCIPAL FINDINGS To study the dynamics and fate of LGT...
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ژورنال
عنوان ژورنال: Botanical Journal of the Linnean Society
سال: 2016
ISSN: 0024-4074
DOI: 10.1111/boj.12372