Correction for Seehausen
            <i>et al.</i>
            , Nuclear markers reveal unexpected genetic variation and a Congolese–Nilotic origin of the Lake Victoria cichlid species flock

Seehausen, Ole; Koetsier, Egbert; Schneider, Maria Victoria; Chapman, Lauren J.; Chapman, CA; Knight, Mairi E.; Turner, George F.; Alphen, Jacques J. M. van; Bills, Roger

doi:10.1098/rspb.2003.2001

Cited by 7 publications

(5 citation statements)

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“…This suggests that the rich adaptive diversity of the Alpine lake whitefish radiation has sprung from a genetically diverse, hybridogenic source population in the 15 kyr since the end of the last glaciation, an astonishingly short evolutionary time. Similar coincidence of cytonuclear discordance and rapid diversification have been obtained from other adaptive radiations [6,7]. The prevalence of introgression, the probable resulting increase in standing genetic variation and the potential for adaptive novelty [13,16,41], has therefore seen the recent reappraisal of introgression as a key mechanism in adaptive radiation [9,14].…”

Section: Discussionsupporting

confidence: 54%

Rapid parallel adaptive radiations from a single hybridogenic ancestral population

2010

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The Alpine lake whitefish (Coregonus lavaretus) species complex is a classic example of a recent radiation, associated with colonization of the Alpine lakes following the glacial retreat (less than 15 kyr BP). They have formed a unique array of endemic lake flocks, each with one to six described sympatric species differing in morphology, diet and reproductive ecology. Here, we present a genomic investigation of the relationships between and within the lake flocks. Comparing the signal between over 1000 AFLP loci and mitochondrial control region sequence data, we use phylogenetic tree-based and population genetic methods to reconstruct the phylogenetic history of the group and to delineate the principal centres of genetic diversity within the radiation. We find significant cytonuclear discordance showing that the genomically monophyletic Alpine whitefish clade arose from a hybrid swarm of at least two glacial refugial lineages. Within this radiation, we find seven extant genetic clusters centred on seven lake systems. Most interestingly, we find evidence of sympatric speciation within and parallel evolution of equivalent phenotypes among these lake systems. However, we also find the genetic signature of human-mediated gene flow and diversity loss within many lakes, highlighting the fragility of recent radiations.

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Section: Discussionsupporting

confidence: 54%

Rapid parallel adaptive radiations from a single hybridogenic ancestral population

2010

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“…We suggest that the inconsistency of the results of Verheyen et al (1) with the geological record, as well as with earlier biochemical work on cichlid origins that is more compatible with a late Pleistocene desiccation of LV (12), may arise primarily from inaccuracies in the calibration of the molecular clocks used in their study.…”

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confidence: 37%

Comment on "Origin of the Superflock of Cichlid Fishes from Lake Victoria, East Africa"

Stager

Day

Santini

2004

Science

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“…Competing hypotheses on the origin of the LV superflock have been proposed (5)(6)(7), and the most recent study suggested a Congolese-Nilotic ancestor (15). Yet, there is still uncertainty about the timing, the geographic origin of the populations that originally colonized LV, and the refugia from which cichlids recolonized LV after its most recent desiccation.…”

mentioning

confidence: 99%

“…To test whether LRP1 could be involved in controlling SMC proliferation, an important step in atherosclerotic lesion development and progression, we generated tissuespecific knockout mice that lack LRP1 only in vascular SMCs. We achieved smooth muscle-specific LRP1 (smLRP) inactivation by crossing SM22Cre transgenic mice (15) -mouse is an excellent model for studying human atherosclerosis, because atherosclerotic lesion formation can be accelerated and experimentally controlled over a wide range by cholesterol feeding (18).…”

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confidence: 99%

Origin of the Superflock of Cichlid Fishes from Lake Victoria, East Africa

Verheyen

Salzburger

Snoeks

et al. 2003

Science

366

420

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Lake Victoria harbors a unique species-rich flock of more than 500 endemic haplochromine cichlid fishes. The origin, age, and mechanism of diversification of this extraordinary radiation are still debated. Geological evidence suggests that the lake dried out completely about 14,700 years ago. On the basis of phylogenetic analyses of almost 300 DNA sequences of the mitochondrial control region of East African cichlids, we find that the Lake Victoria cichlid flock is derived from the geologically older Lake Kivu. We suggest that the two seeding lineages may have already been lake-adapted when they colonized Lake Victoria. A haplotype analysis further shows that the most recent desiccation of Lake Victoria did not lead to a complete extinction of its endemic cichlid fauna and that the major lineage diversification took place about 100,000 years ago.

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Correction for Seehausen et al. , Nuclear markers reveal unexpected genetic variation and a Congolese–Nilotic origin of the Lake Victoria cichlid species flock

Abstract: On page 407, the descriptions of the grey bars in the caption to figure 2 were incorrectly given. The caption should read:

Cited by 7 publications

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Rapid parallel adaptive radiations from a single hybridogenic ancestral population

Rapid parallel adaptive radiations from a single hybridogenic ancestral population

Comment on "Origin of the Superflock of Cichlid Fishes from Lake Victoria, East Africa"

Origin of the Superflock of Cichlid Fishes from Lake Victoria, East Africa

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