J 2017

Phylogeny and phylogeography of Altolamprologus: ancient introgression and recent divergence in a rock-dwelling Lake Tanganyika cichlid genus

KOBLMÜLLER, Stephan, Bruno NEVADO, Lawrence MAKASA, Maarten VAN STEENBERGE, Maarten Pieterjan VANHOVE et. al.

Základní údaje

Originální název

Phylogeny and phylogeography of Altolamprologus: ancient introgression and recent divergence in a rock-dwelling Lake Tanganyika cichlid genus

Autoři

KOBLMÜLLER, Stephan (40 Rakousko), Bruno NEVADO (620 Portugalsko), Lawrence MAKASA (894 Zambie), Maarten VAN STEENBERGE (56 Belgie), Maarten Pieterjan VANHOVE (56 Belgie, garant, domácí), Erik VERHEYEN (56 Belgie), Christian STURMBAUER (40 Rakousko) a Kristina SEFC (40 Rakousko)

Vydání

Hydrobiologia, DORDRECHT, Springer, 2017, 0018-8158

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.165

Kód RIV

RIV/00216224:14310/17:00094670

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000396043800004

Klíčová slova anglicky

Cichlidae; Mitochondrial replacement; Phylogeography; Lake level fluctuations; Lamprologini; Hybridization

Štítky

Změněno: 10. 4. 2018 16:12, Ing. Nicole Zrilić

Anotace

V originále

Stenotopic specialization to a fragmented habitat promotes the evolution of genetic structure. It is not yet clear whether small-scale population structure generally translates into large-scale intraspecific divergence. In the present survey of mitochondrial genetic structure in the Lake Tanganyika endemic Altolamprologus (Teleostei, Cichlidae), a rock-dwelling cichlid genus comprising A. compressiceps and A. calvus, habitat-induced population fragmentation contrasts with weak phylogeographic structure and recent divergence among genetic clades. Low rates of dispersal, perhaps along gastropod shell beds that connect patches of rocky habitat, and periodic secondary contact during lake level fluctuations are apparently sufficient to maintain genetic connectivity within each of the two Altolamprologus species. The picture of genetic cohesion was interrupted by a single highly divergent haplotype clade in A. compressiceps restricted to the northern part of the lake. Comparisons between mitochondrial and nuclear phylogenetic reconstructions suggested that the divergent mitochondrial clade originated from ancient interspecific introgression. Finally, ‘isolation-with-migration’ models indicated that divergence between the two Altolamprologus species was recent (67–142 KYA) and proceeded with little if any gene flow. As in other rock-dwelling cichlids, recent population expansions were inferred in both Altolamprologus species, which may be connected with drastic lake level fluctuations.

Návaznosti

GBP505/12/G112, projekt VaV
Název: ECIP - Evropské centrum ichtyoparazitologie
Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie