Genetic differentiation and evolutionary history of the circumpolar species Ophiura sarsii and subspecies Ophiura sarsii vadicola (Ophiurida: Ophiuridae)

The subfamily Goodeinae is a group of fishes endemic to the Mexican highlands. Most of the species are restricted to small and isolated streams or springs. Within this subfamily, the genus Characodon is the earliest diverging lineage of which three species have been described: C. lateralis, C. audax, and C. garmani, with the latter, considered extinct. Characodon lateralis and C. audax are classed as endangered, and have been the subject of taxonomic controversy since their description: previous studies have recognized a genetic differentiation in two groups separated by the El Salto waterfall, but morphological analyses contradict these genetic results. We perform a phylogeographic study using the mitochondrial cytb gene and d-loop region to elucidate the evolutionary history of C. lateralis and C. audax. The results with both markers show the presence of two highly differentiated haplogroups; one distributed north and the other distributed south of the waterfall, with genetic distances of 1.7 and 13.1% with cytb and d-loop respectively, and divergence calculated to have occurred 1.41 Mya. Significant genetic structure was found within each haplogroup and suggests the existence of at least four Evolutionary Significant Units (ESUs) within the examined populations. The possible processes identified as contributing to the formation of differentiated genetic groups are isolation, low population size, recurrent bottlenecks, and the strong sexual selection exhibited by the genus.

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Systematics and evolution of the African butterfly genus Mylothris (Lepidoptera, Pieridae)

Nota Lepidopterologica ◽

10.3897/nl.43.46354 ◽

2020 ◽

Vol 43 ◽

pp. 1-14 ◽

Cited By ~ 1

Author(s):

Haydon Warren-Gash ◽

Kwaku Aduse-Poku ◽

Leidys Murillo-Ramos ◽

Niklas Wahlberg

Keyword(s):

Genetic Differentiation ◽

Evolutionary History ◽

Central Africa ◽

Species Level ◽

Crown Group ◽

History Of ◽

Species Groups

We study the systematics and evolutionary history of the Afrotropical butterfly genus Mylothris (Lepidoptera: Pieridae) based on six gene regions (COI, EF1a, GAPDH, MDH, RpS5 and wingless). We find that the genus can be placed into five species groups, termed the jacksoni, elodina, rhodope, agathina and hilara groups. Within these species groups, we find that many species show very little genetic differentiation based on the markers we sequenced, suggesting they have undergone rapid and recent speciation. Based on secondary calibrations, we estimate the age of the crown group of Mylothris to be about 16 million years old, but that many of the species level divergences have happened in the Pleistocene. We infer that the clade has its origin in the forests of the Eastern part of Central Africa, and has spread out from there to other regions of Africa.

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Evolutionary History of Caenorhabditis elegans Inferred from Microsatellites: Evidence for Spatial and Temporal Genetic Differentiation and the Occurrence of Outbreeding

Molecular Biology and Evolution ◽

10.1093/molbev/msh264 ◽

2004 ◽

Vol 22 (1) ◽

pp. 160-173 ◽

Cited By ~ 77

Author(s):

M. Haber

Keyword(s):

Caenorhabditis Elegans ◽

Genetic Differentiation ◽

Evolutionary History ◽

History Of

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Role of Pleistocene climatic oscillations on genetic differentiation and evolutionary history of the Transvolcanic deer mouse Peromyscus hylocetes (Rodentia: Cricetidae) throughout the Mexican central highlands

Journal of Zoological Systematics & Evolutionary Research ◽

10.1111/jzs.12541 ◽

2021 ◽

Author(s):

M. Ángel León‐Tapia ◽

Yessica Rico ◽

Jesús A. Fernández ◽

Elizabeth Arellano ◽

Alejandro Espinosa de los Monteros

Keyword(s):

Genetic Differentiation ◽

Evolutionary History ◽

Deer Mouse ◽

Climatic Oscillations ◽

History Of ◽

Central Highlands

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Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

Behavioral and Brain Sciences ◽

10.1017/s0140525x18000274 ◽

2018 ◽

Vol 41 ◽

Author(s):

Kevin Arceneaux

Keyword(s):

Decision Making ◽

Individual Differences ◽

Cognitive Processes ◽

Evolutionary History ◽

Behavioral Responses ◽

History Of ◽

Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

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