Results 21 to 30 of about 26,908 (209)
Selection against accumulating mutations in niche-preference genes can drive speciation. [PDF]
PLoS ONE, 2011 Our current understanding of sympatric speciation is that it occurs primarily through disruptive selection on ecological genes driven by competition, followed by reproductive isolation through reinforcement-like selection against inferior intermediates ...
Niclas Norrström +2 more
doaj +1 more source
Sympatric speciation in an age-structured population living on a lattice [PDF]
, 2004 A square lattice is introduced into the Penna model for biological aging in order to study the evolution of diploid sexual populations under certain conditions when one single locus in the individual's genome is considered as identifier of species.
A. O. Sousa +8 more
core +2 more sources
Evolution: Sympatric Speciation the Eusocial Way [PDF]
Current Biology, 2014 Sympatric speciation normally requires particular conditions of ecological niche differentiation. However, ant social parasites have been suspected to arise sympatrically, because (dis)loyalty to eusocial kin-structures induces disruptive selection for dispersal and inbreeding. A new study documents this process in unprecedented detail.
Boomsma, Jacobus Jan +1 more
openaire +4 more sources
Sympatric speciation by allochrony?
Molecular Ecology, 2022 Sympatric speciation was once thought most improbable, but careful study of some systems, particularly the apple maggot (Rhagoletis pomonella) and related Rhagoletis species has led to a re-evaluation of its likelihood. Different species and host races in this clade of flies often have highly specialized host preference, and along with frequent ...
Neil Rosser +2 more
openaire +3 more sources
Repetitive DNA is Functional and Encodes Parts of the Non‐Coding RNA Repertoire
Advanced Genetics, 2022 This is a commentary on the article by Eviatar Nevo and Kexin Li entitled “Sympatric Speciation in Mole Rats and Wild Barley and Their Genome Repeatome Evolution: A Commentary”, published recently in Advanced Genetics.
James A. Shapiro
doaj +1 more source
Frontiers in Microbiology, 2022 The sympatric occurrence of closely related lineages displaying conserved morphological and ecological traits is often characteristic of free-living microbes. Gene flow, recombination, selection, and mutations govern the genetic variability between these
Aleksandar Stanojković +3 more
doaj +1 more source
Early stages of sympatric homoploid hybrid speciation in crater lake cichlid fishes
Nature Communications, 2022 Here, the authors present a rare example of sympatric homoploid hybrid speciation, without ploidy changes, in the Midas cichlid fishes from Nicaragua. Midas cichlid hybrids occupy a different ecological niche, likely facilitated by body shape adaptations.
Melisa Olave +3 more
doaj +1 more source
Frontiers in Plant Science, 2023 Habitat heterogeneity leads to genome-wide differentiation and morphological and ecological differentiation, which will progress along the speciation continuum, eventually leading to speciation.
Tian Qiu +6 more
doaj +1 more source
Within-host speciation of malaria parasites.
PLoS ONE, 2007 BackgroundSympatric speciation-the divergence of populations into new species in absence of geographic barriers to hybridization-is the most debated mode of diversification of life forms. Parasitic organisms are prominent models for sympatric speciation,
Javier Pérez-Tris +8 more
doaj +1 more source
The European Zoological Journal, 2023 Sympatric distribution and syntopy are not common in closely related species since sporadic crosses may lead to the formation of hybrid zones disrupting the differentiation of sympatric incipient species.
A. M. Sanz-laParra +2 more
doaj +1 more source