Phylogeography of a cryptic speciation continuum in Eurasian spadefoot toads (Pelobates).
2019
Аутори:
Dufresnes, ChristopheStrachinis, Ilias
Suriadna, Nataliia
Mykytynets, Galyna
Cogălniceanu, Dan
Székely, Paul
Vukov, Tanja
Arntzen, Jan W.
Wielstra, Ben
Lymberakis, Petros
Geffen, Eli
Gafny, Sarig
Kumlutaş, Yusuf
Ilgaz, Çetin
Candan, Kamil
Mizsei, Edvárd
Szabolcs, Márton
Kolenda, Krzysztof
Smirnov, Nazar
Géniez, Philippe
Lukanov, Simeon
Crochet, Pierre-André
Dubey, Sylvain
Perrin, Nicolas
Litvinchuk, Spartak N.
Denoël, Mathieu
Тип документа:
Чланак у часопису (Рецензирана верзија)
,
© 2019 John Wiley & Sons Ltd.
Метаподаци
Приказ свих података о документуАпстракт:
Cryptic phylogeographic diversifications provide unique models to examine the role of phylogenetic divergence on the evolution of reproductive isolation, without extrinsic factors such as ecological and behavioural differentiation. Yet, to date very few comparative studies have been attempted within such radiations. Here, we characterize a new speciation continuum in a group of widespread Eurasian amphibians, the Pelobates spadefoot toads, by conducting multilocus (restriction site associated DNA sequencing and mitochondrial DNA) phylogenetic, phylogeographic and hybrid zone analyses. Within the P. syriacus complex, we discovered species-level cryptic divergences (>5 million years ago [My]) between populations distributed in the Near-East (hereafter P. syriacus sensu stricto [s.s.]) and southeastern Europe (hereafter P. balcanicus), each featuring deep intraspecific lineages. Altogether, we could scale hybridizability to divergence time along six different stages, spanning from sympatry without gene flow (P. fuscus and P. balcanicus, >10 My), parapatry with highly restricted hybridization (P. balcanicus and P. syriacus s.s., >5 My), narrow hybrid zones (~15 km) consistent with partial reproductive isolation (P. fuscus and P. vespertinus, ~3 My), to extensive admixture between Pleistocene and refugial lineages (≤2 My). This full spectrum empirically supports a gradual build up of reproductive barriers through time, reversible up until a threshold that we estimate at ~3 My. Hence, cryptic phylogeographic lineages may fade away or become reproductively isolated species simply depending on the time they persist in allopatry, and without definite ecomorphological divergence.
Кључне речи:
Amphibia; Anuran; Hybrid zones; Population genomics; Reproductive isolation; Speciation continuumИзвор:
Molecular Ecology, 2019Финансирање / пројекти:
- Диверзитет водоземаца и гмизаваца Балкана: еволуциони аспекти и конзервација (RS-MESTD-Basic Research (BR or ON)-173043)
- Swiss National Science Foundation. Grant Number: 31003A_166323, P2LAP3_171818
- Romanian National Authority for Scientific Research grant, CNCS‐UEFISCDI. Grant Number: PCE-2011-3-0173
- Wallonie‐Bruxelles International and CCCDI‐UEFISCDI (ANCS). Grant Number: 105BM
DOI: 10.1111/mec.15133
PubMed: 31254307