Allopatric speciation in the desert: diversification of cichlids at their geographical and ecological range limit in Iran

Schwarzer, Julia; Shabani, Naghme; Esmaeili, Hamid Reza; Mwaiko, Salome; Seehausen, Ole (2016). Allopatric speciation in the desert: diversification of cichlids at their geographical and ecological range limit in Iran. Hydrobiologia, 791(1), pp. 193-207. Springer 10.1007/s10750-016-2976-3

[img] Text
Schwarzer et al. 2016_Hydrobiologia_Allopatric speciation in the desert-divesification of cichlids at their geographical and ecological range limit in Iran.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (2MB) | Request a copy

Cichlids are textbook examples for rapid diversification and high species diversity. While in South America, several hundred and in Africa, more than 1500 species of cichlid fish have been described, only one single cichlid species, Iranocichla hormuzensis Coad 1982, was known from Iran, the easternmost range margin of the species-rich African cichlids (Cichlidae: Pseudocrenilabrinae). The aim of our paper was to assess the genetic and phenotypic diversity among populations of Iranocichla across most of its geographical range in Southern Iran. For this, we sequenced two mitochondrial genes and collected color observation of male nuptial coloration in different habitats. Besides conspicuous differences in male nuptial coloration, we found considerable genetic differentiation among Iranocichla populations pointing to the existence of at least two allopatric species, with no evidence of more than one species at one site. Diversification within Iranocichla started, based on our data, in the middle or late Pleistocene and was followed by further population differentiation and bottlenecks during isolation events in the last glacial maximum. Population dispersal leading to the population structure observed today most likely occurred in the course of the early Holocene sea-level rise.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology

UniBE Contributor:

Seehausen, Ole

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

0018-8158

Publisher:

Springer

Language:

English

Submitter:

Marcel Häsler

Date Deposited:

15 Mar 2017 11:07

Last Modified:

15 Mar 2017 11:07

Publisher DOI:

10.1007/s10750-016-2976-3

BORIS DOI:

10.7892/boris.92351

URI:

https://boris.unibe.ch/id/eprint/92351

Actions (login required)

Edit item Edit item
Provide Feedback