Gene flow between species of Lake Victoria haplochromine fishes

Irene E. Samonte, Yoko Satta, Akie Sato, Herbert Tichy, Naoyuki Takahata, Jan Klein

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The haplochromine cichlid fishes of Lake Victoria (LV), East Africa, are a textbook example of adaptive radiation - a rapid divergence of multiple morphologically distinguishable forms from a few founding lineages. The forms are generally believed to constitute a "flock" of several hundred reproductively isolated species in a dozen or so genera. This belief has, until now, not been subjected to a test, however. Here, we compare genetic variation at 11 loci in 10 haplochromine populations of 6 different species. Although the genetic diversity in the populations is quite high, using a variety of statistical tests, we find no evidence of genetic differentiation among the populations of LV haplochromines. On genetic distance trees, populations of the same species intermingle with those of different species. At the molecular level, the species are indistinguishable from one another. Genetic comparisons with closely related species in 2 crater lakes indicate that the species within LV continue exchanging genes. These observations have important implications for phylogenetic reconstruction. The approach used in this study is applicable to other instances of adaptive radiation.

Original languageEnglish (US)
Pages (from-to)2069-2080
Number of pages12
JournalMolecular biology and evolution
Volume24
Issue number9
DOIs
StatePublished - Sep 1 2007

Fingerprint

Lake Victoria
Gene Flow
Victoria
Lakes
gene flow
Fishes
adaptive radiation
lake
fish
genetic variation
Population
Radiation
Cichlids
Eastern Africa
Textbooks
genetic distance
flocks
statistical analysis
crater lake
cichlid

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Cite this

Samonte, I. E., Satta, Y., Sato, A., Tichy, H., Takahata, N., & Klein, J. (2007). Gene flow between species of Lake Victoria haplochromine fishes. Molecular biology and evolution, 24(9), 2069-2080. https://doi.org/10.1093/molbev/msm138
Samonte, Irene E. ; Satta, Yoko ; Sato, Akie ; Tichy, Herbert ; Takahata, Naoyuki ; Klein, Jan. / Gene flow between species of Lake Victoria haplochromine fishes. In: Molecular biology and evolution. 2007 ; Vol. 24, No. 9. pp. 2069-2080.
@article{4f31ec573bd7444199c5d2d4d274b402,
title = "Gene flow between species of Lake Victoria haplochromine fishes",
abstract = "The haplochromine cichlid fishes of Lake Victoria (LV), East Africa, are a textbook example of adaptive radiation - a rapid divergence of multiple morphologically distinguishable forms from a few founding lineages. The forms are generally believed to constitute a {"}flock{"} of several hundred reproductively isolated species in a dozen or so genera. This belief has, until now, not been subjected to a test, however. Here, we compare genetic variation at 11 loci in 10 haplochromine populations of 6 different species. Although the genetic diversity in the populations is quite high, using a variety of statistical tests, we find no evidence of genetic differentiation among the populations of LV haplochromines. On genetic distance trees, populations of the same species intermingle with those of different species. At the molecular level, the species are indistinguishable from one another. Genetic comparisons with closely related species in 2 crater lakes indicate that the species within LV continue exchanging genes. These observations have important implications for phylogenetic reconstruction. The approach used in this study is applicable to other instances of adaptive radiation.",
author = "Samonte, {Irene E.} and Yoko Satta and Akie Sato and Herbert Tichy and Naoyuki Takahata and Jan Klein",
year = "2007",
month = "9",
day = "1",
doi = "10.1093/molbev/msm138",
language = "English (US)",
volume = "24",
pages = "2069--2080",
journal = "Molecular Biology and Evolution",
issn = "0737-4038",
publisher = "Oxford University Press",
number = "9",

}

Samonte, IE, Satta, Y, Sato, A, Tichy, H, Takahata, N & Klein, J 2007, 'Gene flow between species of Lake Victoria haplochromine fishes', Molecular biology and evolution, vol. 24, no. 9, pp. 2069-2080. https://doi.org/10.1093/molbev/msm138

Gene flow between species of Lake Victoria haplochromine fishes. / Samonte, Irene E.; Satta, Yoko; Sato, Akie; Tichy, Herbert; Takahata, Naoyuki; Klein, Jan.

In: Molecular biology and evolution, Vol. 24, No. 9, 01.09.2007, p. 2069-2080.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Gene flow between species of Lake Victoria haplochromine fishes

AU - Samonte, Irene E.

AU - Satta, Yoko

AU - Sato, Akie

AU - Tichy, Herbert

AU - Takahata, Naoyuki

AU - Klein, Jan

PY - 2007/9/1

Y1 - 2007/9/1

N2 - The haplochromine cichlid fishes of Lake Victoria (LV), East Africa, are a textbook example of adaptive radiation - a rapid divergence of multiple morphologically distinguishable forms from a few founding lineages. The forms are generally believed to constitute a "flock" of several hundred reproductively isolated species in a dozen or so genera. This belief has, until now, not been subjected to a test, however. Here, we compare genetic variation at 11 loci in 10 haplochromine populations of 6 different species. Although the genetic diversity in the populations is quite high, using a variety of statistical tests, we find no evidence of genetic differentiation among the populations of LV haplochromines. On genetic distance trees, populations of the same species intermingle with those of different species. At the molecular level, the species are indistinguishable from one another. Genetic comparisons with closely related species in 2 crater lakes indicate that the species within LV continue exchanging genes. These observations have important implications for phylogenetic reconstruction. The approach used in this study is applicable to other instances of adaptive radiation.

AB - The haplochromine cichlid fishes of Lake Victoria (LV), East Africa, are a textbook example of adaptive radiation - a rapid divergence of multiple morphologically distinguishable forms from a few founding lineages. The forms are generally believed to constitute a "flock" of several hundred reproductively isolated species in a dozen or so genera. This belief has, until now, not been subjected to a test, however. Here, we compare genetic variation at 11 loci in 10 haplochromine populations of 6 different species. Although the genetic diversity in the populations is quite high, using a variety of statistical tests, we find no evidence of genetic differentiation among the populations of LV haplochromines. On genetic distance trees, populations of the same species intermingle with those of different species. At the molecular level, the species are indistinguishable from one another. Genetic comparisons with closely related species in 2 crater lakes indicate that the species within LV continue exchanging genes. These observations have important implications for phylogenetic reconstruction. The approach used in this study is applicable to other instances of adaptive radiation.

UR - http://www.scopus.com/inward/record.url?scp=34548399329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548399329&partnerID=8YFLogxK

U2 - 10.1093/molbev/msm138

DO - 10.1093/molbev/msm138

M3 - Article

C2 - 17652334

AN - SCOPUS:34548399329

VL - 24

SP - 2069

EP - 2080

JO - Molecular Biology and Evolution

JF - Molecular Biology and Evolution

SN - 0737-4038

IS - 9

ER -

Samonte IE, Satta Y, Sato A, Tichy H, Takahata N, Klein J. Gene flow between species of Lake Victoria haplochromine fishes. Molecular biology and evolution. 2007 Sep 1;24(9):2069-2080. https://doi.org/10.1093/molbev/msm138