Losing cichlid fish biodiversity: genetic and morphological homogenization of tilapia following colonization by introduced species
نویسندگان
چکیده
منابع مشابه
A genetic linkage map of a cichlid fish, the tilapia (Oreochromis niloticus).
We have constructed a genetic map for a tilapia, Oreochromis niloticus, using DNA markers. The segregation of 62 microsatellite and 112 anonymous fragment length polymorphisms (AFLPs) was studied in 41 haploid embryos derived from a single female. We have identified linkages among 162 (93.1%) of these markers. 95% of the microsatellites and 92% of the AFLPs were linked in the final map. The map...
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Established empirical cases of sympatric speciation are scarce, although there is an increasing consensus that sympatric speciation might be more common than previously thought. Midas cichlid fish are one of the few substantiated cases of sympatric speciation, and they formed repeated radiations in crater lakes. In contrast, in the same environment, such radiation patterns have not been observe...
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1. We used a basin approximation to analyse distribution patterns of different components of biodiversity (taxonomic richness, endemicity, taxonomic singularity, rarity) and conservation status of freshwater fish fauna in 27 Mediterranean Iberian rivers. 2. Basin area alone explained more than 80% of variation in native species richness. Larger basins featured not only a higher number of native...
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1Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany 2International Max Planck Research School (IMPRS) for Organismal Biology, University of Konstanz, Konstanz, Germany 3School of Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia 4Radcliffe Ins...
متن کاملGenetic and environmental effects on the morphological asymmetry in the scale‐eating cichlid fish, Perissodus microlepis
The scale-eating cichlid fish, Perissodus microlepis, from Lake Tanganyika are a well-known example of an asymmetry dimorphism because the mouth/head is either left-bending or right-bending. However, how strongly its pronounced morphological laterality is affected by genetic and environmental factors remains unclear. Using quantitative assessments of mouth asymmetry, we investigated its origin ...
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ژورنال
عنوان ژورنال: Conservation Genetics
سال: 2018
ISSN: 1566-0621,1572-9737
DOI: 10.1007/s10592-018-1088-1