scholarly journals Inferring the degree of incipient speciation in secondary contact zones of closely related lineages of Palearctic green toads (Bufo viridis subgroup)

Heredity ◽  
2014 ◽  
Vol 113 (1) ◽  
pp. 9-20 ◽  
Author(s):  
C Dufresnes ◽  
L Bonato ◽  
N Novarini ◽  
C Betto-Colliard ◽  
N Perrin ◽  
...  
Keyword(s):  
Secondary Contact ◽  
Incipient Speciation ◽  
Contact Zones ◽  
Bufo Viridis

scholarly journals What could be the fate of secondary contact zones between closely related plant species?

2020 ◽  
Vol 43 (2) ◽  
Author(s):  
Carolina K. Schnitzler ◽  
Caroline Turchetto ◽  
Marcelo C. Teixeira ◽  
Loreta B. Freitas
Keyword(s):  
Plant Species ◽  
Secondary Contact ◽  
Contact Zones ◽  
Related Plant

The distribution and biogeography of slow worms (Anguis, Squamata) across the Western Palearctic, with an emphasis on secondary contact zones

2021 ◽  
pp. 1-12
Author(s):  
Daniel Jablonski ◽  
Neftalí Sillero ◽  
Oleksandra Oskyrko ◽  
Adriana Bellati ◽  
Andris Čeirāns ◽  
...  
Keyword(s):  
Natural History ◽  
Genetic Data ◽  
Secondary Contact ◽  
Hybrid Zones ◽  
Grey Zone ◽  
Contact Zones ◽  
Distribution Maps ◽  
Western Palearctic ◽  
Southern Balkans

Abstract The slow-worm lizards (Anguis) comprise five species occurring throughout most of the Western Palearctic. Although these species are relatively uniform morphologically – with the exception of A. cephallonica, which exhibits a quite unique morphology – they are genetically deeply divergent. Here, we provide detailed distribution maps for each species and discuss their biogeography and conservation based on updated genetic data and a robust distribution database. We pay particular attention to the so called ‘grey zone’, which typically represents secondary contact zones and in some cases confirmed or presumed hybrid zones. Four of the five species live in parapatry, while only two species, A. cephallonica and A. graeca from the southern Balkans occur in partial sympatry. Further research should focus on the eco-evolutionary interactions between species in contact, including their hybridization rates, to reveal deeper details of the slow-worm evolutionary and natural history.

scholarly journals Spatial Inference of Admixture Proportions and Secondary Contact Zones

2009 ◽  
Vol 26 (9) ◽  
pp. 1963-1973 ◽  
Author(s):  
E. Durand ◽  
F. Jay ◽  
O. E. Gaggiotti ◽  
O. Francois
Keyword(s):  
Secondary Contact ◽  
Contact Zones

scholarly journals Towards resolving the Knautia arvensis agg. (Dipsacaceae) puzzle: primary and secondary contact zones and ploidy segregation at landscape and microgeographic scales

2009 ◽  
Vol 103 (6) ◽  
pp. 963-974 ◽  
Author(s):  
Filip Kolář ◽  
Milan Štech ◽  
Pavel Trávníček ◽  
Jana Rauchová ◽  
Tomáš Urfus ◽  
...  
Keyword(s):  
Secondary Contact ◽  
Contact Zones

scholarly journals Speciation in Stickleback Facilitated by Admixture – Where is the Evidence?

2020 ◽  
Author(s):  
Daniel Berner
Keyword(s):  
Genetic Variation ◽  
Central Europe ◽  
Population Genetic ◽  
Recent Article ◽  
Threespine Stickleback ◽  
Evolutionary Genomics ◽  
Secondary Contact ◽  
Incipient Speciation ◽  
Cast Doubt ◽  
Methodological Problems

Where genetic variation promoting speciation originates is a crucial question in evolutionary genomics. In a recent article, Marques et al. (2019) seek to address this question in lake and stream threespine stickleback fish from the Lake Constance (hereafter LC) basin in Central Europe. Based on population genetic methods, they conclude that incipient speciation between lake and stream stickleback was facilitated by the mixing of genetic variation from old lineages evolved in isolation (i.e., admixture following secondary contact). In this comment, I discuss conceptual and methodological problems and unrecognized conflicts with existing evidence that cast doubt on Marques et al.’s conclusion.

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