postzygotic

No primate species pairs have evolved postzygotic isolation on the timescale represented by the evolution of Homo.

"So what did Neanderthal women do all day?" Ann Althouse 2006

No primate species pairs have evolved postzygotic isolation on the timescale represented by the evolution of Homo.

"So what did Neanderthal women do all day?" Ann Althouse 2006

Comparing mammals, postzygotic isolating mechanisms take between 2 and 10 million years to evolve.

"So what did Neanderthal women do all day?" Ann Althouse 2006

Comparing mammals, postzygotic isolating mechanisms take between 2 and 10 million years to evolve.

"So what did Neanderthal women do all day?" Ann Althouse 2006

Premating incompatibilities and postzygotic hybrid sterility/inviability have been widely studied as isolating barriers between species.

BioMed Central - Latest articles 2010

The results support the idea that adaptive differentiation may be more important in explaining the emergence of barriers to gene flow in an early phase of speciation by providing a broad genomic basis for extrinsic postzygotic isolation rather than intrinsic barriers.

BioMed Central - Latest articles Sebastien Renaut and Louis Bernatche Arne W Nolte 2009

This study evaluates the relative importance of both processes in the evolution of genomic isolation in incipient species of whitefish (Coregonus clupeaformis) for which preliminary data suggest that postzygotic isolation emerges with intrinsic factors acting at embryo stages but also due to extrinsic factors during adult life.

BioMed Central - Latest articles Sebastien Renaut and Louis Bernatche Arne W Nolte 2009

Although experimental evidence suggests the existence of genetic factors that cause intrinsic postzygotic isolation acting in embryos, the analysis presented here provided few candidate genes in embryos, which also corroborate previous studies showing a lack of ecological divergence between sympatric dwarf and normal whitefish at the larval stage.

BioMed Central - Latest articles Sebastien Renaut and Louis Bernatche Arne W Nolte 2009

We performed artificial cross experiments for 43 pairs of ten taxonomic species, and examined their F1 hybrid pollen fertility in vitro as a quantitative measure of postzygotic reproductive isolation.

BioMed Central - Latest articles Yudai Okuyama and Makoto Kato 2009

However, there may be a current bias towards studying intrinsic postzygotic isolation in old species pairs as compared to the emergence of barriers to gene flow through adaptive divergence.

BioMed Central - Latest articles Sebastien Renaut and Louis Bernatche Arne W Nolte 2009