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catman44
11-02-2019, 02:14 PM
Disease transmission and introgression can explain the long-lasting contact zone of modern humans and Neanderthals

https://www.nature.com/articles/s41467-019-12862-7.epdf?shared_access_token=_Hb9evlGaoCe8znMwxLrfNR gN0jAjWel9jnR3ZoTv0Oyd-HqMGq2RfmSe-NRF_WyKNzcrD8Lnh4Y4YLkoT8YK3BJcJP-ByzhEfxOYZ151L-0FFcEn8ziYxK-YTKFd84NoBvsk9uG2XRBzYjsNgf9xA==&utm_source=commission_junction&utm_medium=affiliate

Henry Stevens
07-23-2020, 06:07 PM
We further propose, and support with dynamical-systems models, that introgression-based transmission of alleles related to the immune system would have gradually diminished this barrier to pervasive inter-species interaction, leading to the eventual release of the inter-species boundary from its geographic localization

This is clever wording to say "cline" or "hybrid zone". With introgression there is no cline. All hybrids return to one or the other parental population. This is what differentiates it from simple gene flow.