Evolutionary history of the endemic Lake Tanganyika cichlid fish Tylochromis polylepis: a recent intruder to a mature adaptive radiation

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.

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Comparative Phylogenetic Analyses of the Adaptive Radiation of Lake Tanganyika Cichlid Fish: Nuclear Sequences Are Less Homoplasious But Also Less Informative Than Mitochondrial DNA

Journal of Molecular Evolution ◽

10.1007/s00239-004-0217-2 ◽

2005 ◽

Vol 61 (5) ◽

pp. 666-681 ◽

Cited By ~ 36

Author(s):

Céline Clabaut ◽

Walter Salzburger ◽

Axel Meyer

Keyword(s):

Mitochondrial Dna ◽

Adaptive Radiation ◽

Lake Tanganyika ◽

Phylogenetic Analyses ◽

Cichlid Fish

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The Aquilegia genome: adaptive radiation and an extraordinarily polymorphic chromosome with a unique history

10.1101/264101 ◽

2018 ◽

Cited By ~ 3

Author(s):

Danièle Filiault ◽

Evangeline S. Ballerini ◽

Terezie Mandáková ◽

Gökçe Aköz ◽

Nathan Derieg ◽

...

Keyword(s):

Adaptive Radiation ◽

Evolutionary History ◽

Wide Distribution ◽

Allele Sharing ◽

Sequencing Data ◽

High Coverage ◽

The World ◽

Entire Chromosome ◽

Evolutionary Context ◽

History Of

AbstractThe columbine genus Aquilegia is a classic example of an adaptive radiation, involving a wide variety of pollinators and habitats. Here we present the genome assembly of A. coerulea ‘Goldsmith’, complemented by high-coverage sequencing data from 10 wild species covering the world-wide distribution. Our analyses reveal extensive allele sharing among species and demonstrate that introgression and selection played a role in the Aquilegia radiation. We also present the remarkable discovery that the evolutionary history of an entire chromosome differs from that of the rest of the genome – a phenomenon which we do not fully understand, but which highlights the need to consider chromosomes in an evolutionary context.

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Evolutionary history of an adaptive radiation in species pairs of threespine sticklebacks (Gasterosteus): insights from mitochondrial DNA

Biological Journal of the Linnean Society ◽

10.1111/j.1095-8312.1999.tb01891.x ◽

1999 ◽

Vol 66 (3) ◽

pp. 271-291 ◽

Cited By ~ 121

Author(s):

ERIC B. TAYLOR ◽

J. D. McPHAIL

Keyword(s):

Mitochondrial Dna ◽

Adaptive Radiation ◽

Evolutionary History ◽

Species Pairs ◽

Threespine Sticklebacks ◽

History Of

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Molecular Phylogenetic Inferences About the Evolutionary History of East African Cichlid Fish Radiations

The Limnology, Climatology and Paleoclimatology of the East African Lakes ◽

10.1201/9780203748978-17 ◽

2019 ◽

pp. 303-323 ◽

Cited By ~ 3

Author(s):

A. Meyer ◽

C.M. Montero ◽

A. Spreinat

Keyword(s):

Evolutionary History ◽

Cichlid Fish ◽

East African ◽

African Cichlid ◽

Molecular Phylogenetic ◽

History Of

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Horizontal Gene Transfers from Bacteria toEntamoebaComplex: A Strategy for Dating Events along Species Divergence

Journal of Parasitology Research ◽

10.1155/2016/3241027 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 2

Author(s):

Miguel Romero ◽

R. Cerritos ◽

Cecilia Ximenez

Keyword(s):

Gene Transfer ◽

Horizontal Gene Transfer ◽

Entamoeba Histolytica ◽

Lateral Gene Transfer ◽

Adaptive Radiation ◽

Fossil Record ◽

Evolutionary History ◽

Divergence Time ◽

Eukaryotic Evolution ◽

History Of

Horizontal gene transfer has proved to be relevant in eukaryotic evolution, as it has been found more often than expected and related to adaptation to certain niches. A relatively large list of laterally transferred genes has been proposed and evaluated for the parasiteEntamoeba histolytica. The goals of this work were to elucidate the importance of lateral gene transfer along the evolutionary history of some members of the genusEntamoeba, through identifying donor groups and estimating the divergence time of some of these events. In order to estimate the divergence time of some of the horizontal gene transfer events, the dating of someEntamoebaspecies was necessary, following an indirect dating strategy based on the fossil record of plausible hosts. The divergence betweenE. histolyticaandE. nuttalliiprobably occurred 5.93 million years ago (Mya); this lineage diverged fromE. dispar9.97 Mya, while the ancestor of the latter separated fromE. invadens68.18 Mya. We estimated times for 22 transferences; the most recent occurred 31.45 Mya and the oldest 253.59 Mya. Indeed, the acquisition of genes through lateral transfer may have triggered a period of adaptive radiation, thus playing a major role in the evolution of theEntamoebagenus.

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First description of monogenean parasites in Lake Tanganyika: the cichlid Simochromis diagramma (Teleostei, Cichlidae) harbours a high diversity of Gyrodactylus species (Platyhelminthes, Monogenea)

Parasitology ◽

10.1017/s0031182010001356 ◽

2010 ◽

Vol 138 (3) ◽

pp. 364-380 ◽

Cited By ~ 35

Author(s):

MAARTEN P. M. VANHOVE ◽

JOS SNOEKS ◽

FILIP A. M. VOLCKAERT ◽

TINE HUYSE

Keyword(s):

Dna Sequences ◽

Host Species ◽

Lake Tanganyika ◽

Cichlid Fish ◽

Copulatory Organ ◽

Fish Parasites ◽

Nuclear Ribosomal Dna ◽

Single Host ◽

History Of ◽

First Time

SUMMARYLake Tanganyika harbours the most diverse endemic cichlid fish assemblage of Africa, but its monogenean fish parasites have not been investigated. Here we report, for the first time, on the Gyrodactylus parasites in this hotspot of fish biodiversity. Haptor morphometrics and nuclear ribosomal DNA sequences revealed 3 new species on Zambian Simochromis diagramma: Gyrodactylus sturmbaueri n. sp., G. thysi n. sp. and G. zimbae n. sp. Their distinct morphology and strong genetic differentiation suggest that they belong to distant lineages within the genus Gyrodactylus, and phylogenetic reconstructions suggest affinities with other genera of gyrodactylids. Additional U-shaped haptoral plates in G. thysi n. sp. and a second large spine-like structure in the male copulatory organ of G. zimbae seem to represent new features for the genus. Such large diversity on a single host species can probably be explained by host-switching events during the course of evolution, in agreement with the generally accepted concept that ecological transfer is an important aspect of gyrodactylid speciation. Additional parasitological surveys on other host species, covering a broader phylogenetic and geographical range, should clarify the evolutionary history of Gyrodactylidae on cichlids in the African Great Lake and other parts of Africa.

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The late Berriasian early evolutionary burst of the Orbitolinidae: New insights into taxonomy, origin, diversification and phylogeny of the family based on data from eastern Serbia

Carnets de géologie (Notebooks on geology) ◽

10.2110/carnets.2021.2115 ◽

2021 ◽

Vol 21 (15) ◽

pp. 343-382

Author(s):

Felix Schlagintweit

Keyword(s):

Adaptive Radiation ◽

Fossil Record ◽

Evolutionary History ◽

Large Benthic Foraminifera ◽

Time Period ◽

The Family ◽

History Of ◽

Phylogenetic Evolution ◽

Family Based ◽

A New Species

New data from the Carpatho-Balkanides of eastern Serbia evidence the more or less near-simultaneous "explosive" first appearances of several genera of the Orbitolinidae in the late Berriasian. Most of the observed taxa were previously recorded from strata not older than the Late Hauterivian (= classical Urgonian of southeastern France), evidence that these ages refer to local first appearance data. The diversified assemblage from Serbia includes representatives of the subfamilies Dictyoconinae: genera Cribellopsis ARNAUD-VANNEAU, Montseciella CHERCHI & SCHROEDER, Orbitolinopsis HENSON, Urgonina FOURY & MOULLADE, Valserina SCHROEDER & CONRAD, Vanneauina SCHLAGINTWEIT, and Dictyorbitolininae: genus Paracoskinolina MOULLADE. Representatives of the Orbitolininae (with complex embryo) have not been observed. They appeared later in the fossil record seemingly during the Late Hauterivian-early Barremian. All together 17 taxa are reported, of which three in open nomenclature. A new species is described as Cribellopsis sudari n. sp. The majority of the observed species display medium- to high-conical tests and a rather simple exoskeleton lacking horizontal partitions (rafters). The new data contradict a phylogenetic evolution of distinct genera displaying different internal test structures one after the other in time (= ancestor-descendant relationships) as postulated by some authors. The explosive radiation ("early burst") of the Orbitolinidae in the late Berriasian is accompanied by the first appearance date of several other large benthic foraminifera including mostly agglutinating (e.g., Ammocycloloculina, Choffatella, Drevennia, Eclusia, Moulladella, Pfenderina, Pseudotextulariella) but also complex porcelaneous taxa (Pavlovcevina) providing evidence for a bioevent in this time period that exceeds the number of taxa originating in the previous (Tithonian) and the following stage (Valanginian). The early evolutionary history of the Orbitolinidae can be considered a classical example of adaptive radiation within the clade's history.

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Depth and substratum differentiations among coexisting herbivorous cichlids in Lake Tanganyika

Royal Society Open Science ◽

10.1098/rsos.160229 ◽

2016 ◽

Vol 3 (11) ◽

pp. 160229 ◽

Cited By ~ 2

Author(s):

Hiroki Hata ◽

Haruki Ochi

Keyword(s):

Adaptive Radiation ◽

Rocky Shore ◽

Lake Level ◽

Lake Tanganyika ◽

Cichlid Fish ◽

Species Number ◽

Niche Segregation ◽

Cichlid Species ◽

Feeding Territory ◽

Shed Light

Cichlid fish in Lake Tanganyika represent a system of adaptive radiation in which eight ancestral lineages have diversified into hundreds of species through adaptation to various niches. However, Tanganyikan cichlids have been thought to be oversaturated, that is, the species number exceeds the number of niches and ecologically equivalent and competitively even species coexist. However, recent studies have shed light on niche segregation on a finer scale among apparently equivalent species. We observed depth and substratum preferences of 15 herbivorous cichlids from four ecomorphs (i.e. grazer, browser, scraper and scooper) on a rocky littoral slope for 14 years. Depth differentiation was detected among grazers that defended feeding territories and among browsers with feeding territories. Cichlid species having no feeding territory also showed specificity on depth and substratum, resulting in habitat segregation among species that belong to the same ecomorph. Phylogenetically close species did not occupy adjacent depths, nor the opposite depth zones. Our findings suggest that apparently equivalent species of the same ecomorph coexist parapatrically along depth on a few-metre scale, or coexist with different substratum preferences on the rocky shore, and this niche segregation may have been acquired by competition between encountering equivalent species through repetitive lake-level fluctuations.

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