scholarly journals Niche divergence facilitated by fine‐scale ecological partitioning in a recent cichlid fish adaptive radiation

Evolution ◽  
2016 ◽  
Vol 70 (12) ◽  
pp. 2718-2735 ◽  
Author(s):  
Antonia G. P. Ford ◽  
Lukas Rüber ◽  
Jason Newton ◽  
Kanchon K. Dasmahapatra ◽  
John D. Balarin ◽  
...  
Keyword(s):  
Adaptive Radiation ◽  
Cichlid Fish ◽  
Fine Scale ◽  
Niche Divergence

scholarly journals The genomic substrate for adaptive radiation in African cichlid fish

Nature ◽  
2014 ◽  
Vol 513 (7518) ◽  
pp. 375-381 ◽  
Author(s):  
David Brawand ◽  
Catherine E. Wagner ◽  
Yang I. Li ◽  
Milan Malinsky ◽  
Irene Keller ◽  
...  
Keyword(s):  
Adaptive Radiation ◽  
Cichlid Fish ◽  
African Cichlid

scholarly journals The Adaptive Radiation of Cichlid Fish in Lake Tanganyika: A Morphological Perspective

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Tetsumi Takahashi ◽  
Stephan Koblmüller
Keyword(s):  
East Africa ◽  
Adaptive Radiation ◽  
Lake Tanganyika ◽  
Cichlid Fish ◽  
Ancient Lakes ◽  
Species Assemblage ◽  
Cichlid Species ◽  
Morphological Studies ◽  
Rapid Speciation ◽  
Explosive Speciation

Lake Tanganyika is the oldest of the Great Ancient Lakes in the East Africa. This lake harbours about 250 species of cichlid fish, which are highly diverse in terms of morphology, behaviour, and ecology. Lake Tanganyika's cichlid diversity has evolved through explosive speciation and is treated as a textbook example of adaptive radiation, the rapid differentiation of a single ancestor into an array of species that differ in traits used to exploit their environments and resources. To elucidate the processes and mechanisms underlying the rapid speciation and adaptive radiation of Lake Tanganyika's cichlid species assemblage it is important to integrate evidence from several lines of research. Great efforts have been, are, and certainly will be taken to solve the mystery of how so many cichlid species evolved in so little time. In the present review, we summarize morphological studies that relate to the adaptive radiation of Lake Tanganyika's cichlids and highlight their importance for understanding the process of adaptive radiation.

Fine-scale recombination and adaptive radiation could be linked

Gene ◽  
2013 ◽  
Vol 527 (1) ◽  
pp. 429-430
Author(s):  
Josselin Bodilis
Keyword(s):  
Adaptive Radiation ◽  
Fine Scale

scholarly journals POPULATION GENOMIC TESTS OF MODELS OF ADAPTIVE RADIATION IN LAKE VICTORIA REGION CICHLID FISH

Evolution ◽  
2011 ◽  
Vol 65 (12) ◽  
pp. 3381-3397 ◽  
Author(s):  
Etienne Bezault ◽  
Salome Mwaiko ◽  
Ole Seehausen
Keyword(s):  
Adaptive Radiation ◽  
Lake Victoria ◽  
Cichlid Fish ◽  
Population Genomic ◽  
Lake Victoria Region

scholarly journals Adaptive radiation by waves of gene transfer leads to fine-scale resource partitioning in marine microbes

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Jan-Hendrik Hehemann ◽  
Philip Arevalo ◽  
Manoshi S. Datta ◽  
Xiaoqian Yu ◽  
Christopher H. Corzett ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Adaptive Radiation ◽  
Resource Partitioning ◽  
Fine Scale ◽  
Marine Microbes

scholarly journals Fine‐scale empirical data on niche divergence and homeolog expression patterns in an allopolyploid and its diploid progenitor species

2020 ◽  
Author(s):  
Reiko Akiyama ◽  
Jianqiang Sun ◽  
Masaomi Hatakeyama ◽  
Heidi E. L. Lischer ◽  
Roman V. Briskine ◽  
...  
Keyword(s):  
Empirical Data ◽  
Expression Patterns ◽  
Fine Scale ◽  
Diploid Progenitor ◽  
Niche Divergence

scholarly journals Ancestral Hybridization Facilitated Species Diversification in the Lake Malawi Cichlid Fish Adaptive Radiation

2019 ◽  
Vol 37 (4) ◽  
pp. 1100-1113 ◽  
Author(s):  
Hannes Svardal ◽  
Fu Xiang Quah ◽  
Milan Malinsky ◽  
Benjamin P Ngatunga ◽  
Eric A Miska ◽  
...  
Keyword(s):  
Adaptive Radiation ◽  
Large Scale ◽  
Lake Victoria ◽  
Cichlid Fish ◽  
Lake Malawi ◽  
Raw Material ◽  
Founder Population ◽  
East African ◽  
Cichlid Species ◽  
Show Evidence

Abstract The adaptive radiation of cichlid fishes in East African Lake Malawi encompasses over 500 species that are believed to have evolved within the last 800,000 years from a common founder population. It has been proposed that hybridization between ancestral lineages can provide the genetic raw material to fuel such exceptionally high diversification rates, and evidence for this has recently been presented for the Lake Victoria region cichlid superflock. Here, we report that Lake Malawi cichlid genomes also show evidence of hybridization between two lineages that split 3–4 Ma, today represented by Lake Victoria cichlids and the riverine Astatotilapia sp. “ruaha blue.” The two ancestries in Malawi cichlid genomes are present in large blocks of several kilobases, but there is little variation in this pattern between Malawi cichlid species, suggesting that the large-scale mosaic structure of the genomes was largely established prior to the radiation. Nevertheless, tens of thousands of polymorphic variants apparently derived from the hybridization are interspersed in the genomes. These loci show a striking excess of differentiation across ecological subgroups in the Lake Malawi cichlid assemblage, and parental alleles sort differentially into benthic and pelagic Malawi cichlid lineages, consistent with strong differential selection on these loci during species divergence. Furthermore, these loci are enriched for genes involved in immune response and vision, including opsin genes previously identified as important for speciation. Our results reinforce the role of ancestral hybridization in explosive diversification by demonstrating its significance in one of the largest recent vertebrate adaptive radiations.

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