Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 56, Issue 3, Pages 1011-1024Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2010.05.015
Keywords
Midas cichlid; Amphilophus citrinellus; Crater lake; AFLP; Apoyo; Xiloa
Funding
- FUNDECI/GAIA
- DAAD
- LMU
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Nicaraguan Midas cichlids from crater lakes have recently attracted attention as potential model systems for speciation research, but no attempt has been made to comprehensively reconstruct phylogenetic relationships of this highly diverse and recently evolved species complex. We present a first AFLP (2793 loci) and mtDNA based phylogenetic hypothesis including all described and several undescribed species from six crater lakes (Apoyeque, Apoyo, Asososca Leon, Masaya, Tiscapa and Xiloa), the two great Lakes Managua and Nicaragua and the San Juan River. Our analyses demonstrate that the relationships between the Midas cichlid members are complex, and that phylogenetic information from different markers and methods do not always yield congruent results. Nevertheless, monophyly support for crater lake assemblages from Lakes Apoyeque, Apoyo, A. Leon is high as compared to those from L Xiloa indicating occurrence of sympatric speciation. Further, we demonstrate that a 'three species' concept for the Midas cichlid complex is inapplicable and consequently that an individualized and voucher based approach in speciadon research of the Midas cichlid complex is necessary at least as long as there is no comprehensive revision of the species complex available. (C) 2010 Elsevier Inc. All rights reserved.
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