Phylogenomic timetree-calibrated speciation clocks for Caenorhabditis nematodes reveal slow but disproportionate accumulation of post-zygotic reproductive isolation. [PDF]
Reproductive isolation and genomic divergence both accumulate over time in the formation and persistence of distinct biological species. The pace of "speciation clocks" quantified with pre-zygotic and post-zygotic reproductive isolation, however, differs
Daniel D Fusca +3 more
doaj +2 more sources
A history of studies of reproductive isolation between Drosophila pseudoobscura and D. persimilis [PDF]
Drosophila pseudoobscura and D. persimilis are a sister species pair that have been used as a model for studies of reproductive isolation and speciation for almost 100 years owing to their close evolutionary history, well characterized genetic ...
Stewart Leigh, Michael G. Ritchie
doaj +2 more sources
Reproductive isolation arises during laboratory adaptation to a novel hot environment [PDF]
Background Reproductive isolation can result from adaptive processes (e.g., ecological speciation and mutation-order speciation) or stochastic processes such as “system drift” model.
Sheng-Kai Hsu +6 more
doaj +2 more sources
Partial and asymmetrical reproductive isolation between two sympatric tropical shrub species: Cnidoscolus aconitifolius and C. souzae (Euphorbiaceae) [PDF]
Reproductive isolation is conferred by several barriers that occur at different stages of reproduction. Comprehensive reviews on the topic have identified that barriers occurring prior to zygote formation are often stronger than those that occur ...
Miguel A. Munguía‐Rosas +2 more
doaj +2 more sources
Two complementary genes in a presence-absence variation contribute to indica-japonica reproductive isolation in rice [PDF]
Understanding the evolutionary forces in speciation is a central goal in evolutionary biology. Asian cultivated rice has two subspecies, indica and japonica, but the underlying mechanism of the partial reproductive isolation between them remains obscure.
Daiqi Wang +20 more
doaj +2 more sources
Pre- and Post-Zygotic Barriers Contribute to Reproductive Isolation and Correlate with Genetic Distance in Cucumis [PDF]
Hybridization between Cucumis species, including cultivated melon (C. melo), is hampered by Interspecific Reproductive Barriers (IRBs). However, the nature of IRBs in Cucumis is largely unknown.
María Ferriol +6 more
doaj +2 more sources
Genetic Basis of Reproductive Isolation in Torrey Pine (Pinus torreyana Parry): Insights From Hybridization and Adaptation [PDF]
Tree species are often locally adapted to their environments, but the extent to which environmental adaptation contributes to incipient speciation is unclear.
Lionel N. Di Santo +3 more
doaj +2 more sources
Multiple factors contribute to reproductive isolation between two co-existing Habenaria species (Orchidaceae). [PDF]
Reproductive isolation is a key feature that forms barriers to gene flow between distinct plants. In orchids, prezygotic reproductive isolation has been considered to be strong, because their associations with highly specific pollinators.
Wenliu Zhang, Jiangyun Gao
doaj +1 more source
Background Evolution of reproductive isolation is an important process, generating biodiversity and driving speciation. To better understand this process, it is necessary to investigate factors underlying reproductive isolation through various approaches
Yukie Sato +4 more
doaj +1 more source
Reproductive isolation plays an important role in maintaining the species integrity of sympatric close relatives. For sympatric Arisaema species, interspecific gene flow is expected to be effectively prevented by pre‐pollination barriers, particularly ...
Luo Zeng +5 more
doaj +1 more source

