Did modern humans wipe out the Neanderthal people who inhabited Europe until 28,000 years ago, or did the two populations merge through interbreeding?
But when fry from a hatchery are used to supplement wild populations as part of conservation efforts, the small-egg tendencies of the captive-bred can spread to the wild population through interbreeding.
Escaped sea bass and sea bream disperse from farms, potentially mixing with local stocks and leading to potential negative genetic and ecological consequences through interbreeding, predation, competition for food or habitat, and the transmission of pathogens to native populations (Arechavala-Lopez et al. 2011, 2012b, 2013b, 2014; Šegvić-Bubić et al. 2014).
Which, unsurprisingly, probably led to their disappearance (be it through interbreeding or extinction) 40,000 years ago.
Of the three hosts who convened this broadcast gem, the one who disagreed with Beck -- Brian Kilmeade -- had recently declared on air that the white race in America had been weakened through interbreeding with non-whites, a statement for which he apologized after it sparked wide-scale outrage.
The presence of fixed ITS2 variants within the A. longirostris rDNA genotypes suggests the rDNA array is moving as a single evolutionary unit through interbreeding populations.
Pollen or seed movement can introduce alleles to a new population through interbreeding or simply allow for colonization of new areas, allowing the population to exist in environments that maximize fitness (Jump and Peñuelas 2005).
Second, there is evidence that the gene pool of Homo sapiens received contributions through interbreeding with other hominin species, such as Neanderthals (Green et al., 2010) and a recently discovered type from Siberia (Abi-Rached et al., 2011).
Geographic overlap between taxa that are elsewhere connected through interbreeding populations is an essential element of this model, because it is ongoing gene flow that distinguishes ring species from cases of allopatric speciation that happen to be arranged in a roughly circular fashion [ 6].
Hybridisation through in-vitro fertilisation is big in south east Asia, where aquaculture businesses are interbreeding valuable grouper species in a bid to create a fast-growing super fish.
