Dobzhansky-Muller incompatibilities, dominance drive, and sex-chromosome introgression at secondary contact zones: A simulation study

Evolution ◽  
2018 ◽  
Vol 72 (7) ◽  
pp. 1350-1361 ◽  
Author(s):  
Luca Sciuchetti ◽  
Christophe Dufresnes ◽  
Elisa Cavoto ◽  
Alan Brelsford ◽  
Nicolas Perrin
Keyword(s):  
Simulation Study ◽  
Sex Chromosome ◽  
Secondary Contact ◽  
Contact Zones ◽  
Chromosome Introgression

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 Sex chromosome turnovers and genetic drift: a simulation study

2018 ◽  
Vol 31 (9) ◽  
pp. 1413-1419 ◽  
Author(s):  
Paul A. Saunders ◽  
Samuel Neuenschwander ◽  
Nicolas Perrin
Keyword(s):  
Genetic Drift ◽  
Simulation Study ◽  
Sex Chromosome

scholarly journals Secondary contact zones of closely‐related Erebia butterflies overlap with narrow phenotypic and parasitic clines

2020 ◽  
Author(s):  
Kay Lucek ◽  
Roger K. Butlin ◽  
Theofania Patsiou
Keyword(s):  
Secondary Contact ◽  
Contact Zones

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 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 Secondary contact zones and hybridizations: the case of the lesser white-toothed shrew (Crocidura suaveolens group, Soricidae)

2008 ◽  
Vol 95 (3) ◽  
pp. 557-565 ◽  
Author(s):  
SYLVAIN DUBEY ◽  
EBRU DIKER ◽  
CENGIZ KURTONUR ◽  
PETER VOGEL
Keyword(s):  
Secondary Contact ◽  
Contact Zones

scholarly journals A dense linkage map for a large repetitive genome: discovery of the sex-determining region in hybridising fire-bellied toads (Bombina bombina and B. variegata)

2020 ◽  
Author(s):  
Beate Nürnberger ◽  
Stuart J.E. Baird ◽  
Dagmar Čížková ◽  
Anna Bryjová ◽  
Austin B. Mudd ◽  
...  
Keyword(s):  
Sex Determination ◽  
Linkage Map ◽  
Large Scale ◽  
Sex Chromosome ◽  
Repetitive Sequences ◽  
Secondary Contact ◽  
Gene Pools ◽  
Hybrid Zones ◽  
Chromosome 5 ◽  
Bombina Bombina

AbstractHybrid zones that result from secondary contact between diverged populations offer unparalleled insight into the genetic architecture of emerging reproductive barriers and so shed light on the process of speciation. Natural selection and recombination jointly determine their dynamics, leading to a range of outcomes from finely fragmented mixtures of the parental genomes that facilitate introgression to a situation where strong selection against recombinants retains large unrecombined genomic blocks that act as strong barriers to gene flow. In the hybrid zone between the fire-bellied toads Bombina bombina and B. variegata (Anura: Bombinatoridae), two anciently diverged and ecologically distinct taxa meet and produce abundant, fertile hybrids. The dense linkage map presented here enables genomic analysis of the selection-recombination balance that keeps the two gene pools from merging into one. We mapped 4,775 newly developed marker loci from bait-enriched genomic libraries in F2 crosses. The enrichment targets were selected from a draft assembly of the B. variegata genome, after filtering highly repetitive sequences. We developed a novel approach to infer the most likely diplotype per sample and locus from the raw read mapping data, which is robust to over-merging and obviates arbitrary filtering thresholds. Large-scale synteny between Bombina and Xenopus tropicalis supports the resulting linkage map. By assessing the sex of late-stage F2 tadpoles from histological sections, we also identified the sex-determining region in the Bombina genome to 7 cM on LG5, which is homologous to X. tropicalis chromosome 5, and inferred male heterogamety, suggestive of an XY sex determination mechanism. Interestingly, chromosome 5 has been repeatedly recruited as a sex chromosome in anurans with XY sex determination.

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