Journal ArticleDOI
Reaching the edge of the speciation continuum: hybridization between three sympatric species of Hyla tree frogs
Olivier Drillon,Guillaume Dufresnes,Nicolas Perrin,Pierre-André Crochet,Christophe Dufresnes +4 more
Reads0
Chats0
TLDR
Findings suggest H. meridionalis is still able to reproduce with parapatric congeneric species despite 20My of divergence and strong phenotypic differentiation, but that intrinsic incompatibilities (sterility) prevent genetic introgression.Abstract:
Alloparapatric species meeting in secondary contact zones are evolutionary witnesses to how reproductive isolation progresses over time and space. Western Palearctic tree frogs (Hyla) are phenotypically similar and all the species pairs tested can hybridize and eventually admix at range margins. All except one. The early-diverged Hyla meridionalis exhibits sharp phenotypic differences: a “long” breeding call and the absence of a lateral stripe. In southwestern Europe, this species co-occurs with the “short-call” striped tree frogs H. arborea and H. molleri, two expanding lineages that admix at their parapatric margins. We estimated local gene flow between these three taxa at several syntopic breeding sites in western France. We congruently matched genotypes to phenotypes: the “short-call” striped individuals were a nuclear mixture of H. arborea and H. molleri; the “long-call” stripeless individuals all featured pure H. meridionalis nuclear ancestry and mtDNA, confirming complete genetic isolation from H. arborea/molleri. Yet, we documented an F1 hybrid between a female H. arborea/molleri and a male H. meridionalis: an incompletely-striped male with an intermediate breeding call. These findings suggest H. meridionalis is still able to reproduce with parapatric congeneric species despite 20My of divergence and strong phenotypic differentiation, but that intrinsic incompatibilities (sterility) prevent genetic introgression.read more
Citations
More filters
The Use Of Bioacoustics In Anuran Taxonomy: Theory, Terminology, Methods And Recommendations For Best Practice
Koehler,Joern,Jansen,Martin,Rodriguez,Ariel,Kok,J R Philippe,Toledo,Luis Felipe,Emmrich,Mike,Glaw,Frank,Haddad,F B Celio,Roedel,Mark-Oliver,Vences,Miguel +19 more
TL;DR: A review of the terminology and variation of frog calls from a perspective of integrative taxonomy can be found in this paper, where the authors provide guidelines for the taxonomic interpretation of advertisement call differences in sympatric and allopatric situations.
Journal Article
Additional results and discussion to the paper: Asymmetric viability of reciprocal-cross hybrids between crested and marbled newts (Triturus cristatus and T. marmoratus)
TL;DR: In this paper, a series of independent molecular analyses over several seasons on four life stages of F1 hybrids between the newts Triturus cristatus and T. marmoratus was performed.
Journal ArticleDOI
Gene flow creates a mirage of cryptic species in a Southeast Asian spotted stream frog complex.
Kin Onn Chan,Carl R. Hutter,Carl R. Hutter,Perry L. Wood,Perry L. Wood,L. Lee Grismer,Indraneil Das,Rafe M. Brown +7 more
TL;DR: This work compared conventional SDMs with more robust genomic analyses that assess population structure and gene flow to characterize species boundaries in a Southeast Asian frog complex and showed that gene flow and introgression can produce phylogenetic patterns and levels of divergence that resemble distinct species.
Journal ArticleDOI
Mass of genes rather than master genes underlie the genomic architecture of amphibian speciation
Christophe Dufresnes,Alan Brelsford,Daniel L. Jeffries,Glib Mazepa,Glib Mazepa,Tomasz Suchan,Daniele Canestrelli,Alfredo G. Nicieza,Luca Fumagalli,Sylvain Dubey,Iñigo Martínez-Solano,Spartak N. Litvinchuk,Miguel Vences,Nicolas Perrin,Pierre-André Crochet +14 more
TL;DR: In this article, the authors examined the geographic and genomic landscapes of introgression across the hybrid zones of 41 pairs of frog and toad lineages in the Western Palearctic region.
Journal ArticleDOI
Triad hybridization via a conduit species
Peter R. Grant,B. Rosemary Grant +1 more
TL;DR: A long-term study of interbreeding Darwin’s finches on Daphne Major island, Galápagos, shows that Geospiza fortis acts as a conduit for the passage of genes from Geospia fuliginosa, a rare immigrant, to Geospika scandens, a resident, and surprisingly, the species and the derived dihybrids and trihybrids had approximately equal fitness.
References
More filters
Journal ArticleDOI
Inference of population structure using multilocus genotype data
TL;DR: Pritch et al. as discussed by the authors proposed a model-based clustering method for using multilocus genotype data to infer population structure and assign individuals to populations, which can be applied to most of the commonly used genetic markers, provided that they are not closely linked.
Journal ArticleDOI
Detecting the number of clusters of individuals using the software STRUCTURE: a simulation study.
TL;DR: It is found that in most cases the estimated ‘log probability of data’ does not provide a correct estimation of the number of clusters, K, and using an ad hoc statistic ΔK based on the rate of change in the log probability between successive K values, structure accurately detects the uppermost hierarchical level of structure for the scenarios the authors tested.
Journal ArticleDOI
STRUCTURE HARVESTER: a website and program for visualizing STRUCTURE output and implementing the Evanno method
Dent Earl,Bridgett M. vonHoldt +1 more
TL;DR: STRUCTURE HARVESTER is presented, a web-based program for collating results generated by the program STRUCTURE, which provides a fast way to assess and visualize likelihood values across multiple values of K and hundreds of iterations for easier detection of the number of genetic groups that best fit the data.
Journal ArticleDOI
The interplay between habitat availability and population differentiation
Yvonne I. Verkuil,Theunis Piersma,Joop Jukema,Leo Zwarts,Allan J. Baker,Jos C.E.W. Hooijmeijer +5 more
Journal ArticleDOI
adegenet: a R package for the multivariate analysis of genetic markers
TL;DR: The package adegenet for the R software is dedicated to the multivariate analysis of genetic markers by implementing formal classes and functions to manipulate and analyse genetic markers.