Mitochondrial phylogeography and cryptic divergence in the stickleback genus Pungitius

2015 ◽  
Vol 42 (12) ◽  
pp. 2334-2348 ◽  
Author(s):  
Cui Wang ◽  
Takahito Shikano ◽  
Henri Persat ◽  
Juha Merilä
Keyword(s):  
Cryptic Divergence

Unraveling unique island colonization events in Elachistocleis frogs: phylogeography, cryptic divergence, and taxonomical implications

2021 ◽  
Vol 21 (1) ◽  
pp. 189-206
Author(s):  
Michael J. Jowers ◽  
Siti N. Othman ◽  
Amaël Borzée ◽  
Gilson A. Rivas ◽  
Santiago Sánchez-Ramírez ◽  
...  
Keyword(s):  
Island Colonization ◽  
Cryptic Divergence

scholarly journals Genome Variation in Tick Infestation and Cryptic Divergence in Tunisian Indigenous Sheep

2021 ◽  
Author(s):  
Abulgasim M. Ahbara ◽  
Médiha Khamassi Khbou ◽  
Rihab Rhomdhane ◽  
Limam Sassi ◽  
Mohamed Gharbi ◽  
...  
Keyword(s):  
Tick Infestation ◽  
Growth Traits ◽  
Genome Structure ◽  
High Confidence ◽  
Indigenous Sheep ◽  
Genome Wide ◽  
Global Concern ◽  
Multiple Pathogens ◽  
Tick Resistance ◽  
Cryptic Divergence

Abstract Background: Ticks are obligate haematophagous ectoparasites considered second to mosquitos as vectors and reservoirs of multiple pathogens of global concern. Individual variation in tick infestation has been reported in indigenous sheep, but the genes regulating the trait are poorly understood.Results: Here, we report 397 genome-wide signatures of selection overlapping 991 genes from the analysis, using four methods (ROH, LR-GWAS, XP-EHH, FST), of 600K SNP genotype data from 170 Tunisian sheep exhibiting high and low resistance to ticks. We considered 45 signatures detected by consensus results of at least two methods as high-confidence selection sweep regions. These spanned 104 genes which included immune system function genes, solute carriers and chemokine receptor. One region spanned STX5, that has been associated with tick resistance in cattle, implicating it as a prime candidate in sheep. We also observed RAB6B and TF in a high confidence candidate region that has been associated with growth traits suggesting natural selection is enhancing growth and developmental stability under tick challenge. The analysis also reveals fine-scale genome structure suggesting the existence of cryptic divergence in the Tunisian sheep.Conclusion: Our findings provide genomic reference that could enhance our understanding of the genetic architecture of tick resistance and cryptic divergence in indigenous sheep.

scholarly journals Cryptic divergence and revised species taxonomy within the Great Basin pocket mouse,Perognathus parvus(Peale, 1848), species group

2014 ◽  
Vol 95 (1) ◽  
pp. 9-25 ◽  
Author(s):  
Brett R. Riddle ◽  
Tereza Jezkova ◽  
Mallory E. Eckstut ◽  
Viktória Oláh-Hemmings ◽  
Leslie N. Carraway
Keyword(s):  
Great Basin ◽  
Species Group ◽  
Pocket Mouse ◽  
Species Taxonomy ◽  
Cryptic Divergence

scholarly journals Salinity and depth as structuring factors of cryptic divergence in Moina brachiata (Crustacea: Cladocera)

2014 ◽  
Vol 184 (1) ◽  
pp. 69-85 ◽  
Author(s):  
Judit Nédli ◽  
Luc De Meester ◽  
Ágnes Major ◽  
Klaus Schwenk ◽  
Ildikó Szivák ◽  
...  
Keyword(s):  
Cryptic Divergence

scholarly journals The origins of limnetic forms and cryptic divergence in Gnathopogon fishes (Cyprinidae) in Japan

2012 ◽  
Vol 96 (5) ◽  
pp. 631-644 ◽  
Author(s):  
Ryo Kakioka ◽  
Tomoyuki Kokita ◽  
Ryoichi Tabata ◽  
Seiichi Mori ◽  
Katsutoshi Watanabe
Keyword(s):  
Cryptic Divergence

Intraspecific Diversity and Phylogeography in Southern Appalachian Dasycerus carolinensis (Coleoptera: Staphylinidae: Dasycerinae)

2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Michael S Caterino ◽  
Shelley S Langton-Myers
Keyword(s):  
Genetic Diversity ◽  
Anthropogenic Disturbance ◽  
Secondary Growth ◽  
Intraspecific Diversity ◽  
Nuclear Marker ◽  
Old Growth ◽  
Rove Beetle ◽  
Southern Appalachian ◽  
History Of ◽  
Cryptic Divergence

Abstract The southern Appalachian Mountains in eastern North America host exceptional diversity, a substantial proportion of which has been generated in place. Yet, beyond broad generalities, bio- and phylogeographical patterns, and the temporal scale of diversification in the region are poorly resolved. Using one mitochondrial and one nuclear marker, we analyze intraspecific diversity patterns in a flightless, litter-inhabiting rove beetle Dasycerus carolinensis Horn. Our goals were to reconstruct the phylogeographical history of this species, producing a dated intraspecific phylogeny, and to examine previous hypotheses of possible cryptic divergence across populations of the species. Samples derive from a mix of old-growth fragments and secondary growth forests, and we also ask whether old-growth remnants host a larger proportion of genetic diversity in the species. We recover a strong primary subdivision among major lineages across the French Broad River basin (dated to ~5.8 MYBP), and a secondary subdivision among western populations dating to ~4.5 MYBP. Most interpopulation uncorrected divergences exceed 5%, strongly suggesting cryptic differentiation. Old-growth populations do not show greater genetic diversity than secondary-growth populations, indicating that most populations have persisted through recent anthropogenic disturbance.

scholarly journals High lineage survivorship across the end-Devonian Mass Extinction suggested by a remarkable new Late Devonian actinopterygian

2021 ◽  
Author(s):  
Sam Giles ◽  
Kara Feilich ◽  
Stephanie Pierce ◽  
Matt Friedman
Keyword(s):  
Morphological Diversity ◽  
Early Carboniferous ◽  
Late Devonian ◽  
New Genus And Species ◽  
Anatomical Features ◽  
History Of ◽  
Phylogenetic Hypotheses ◽  
Key Events ◽  
Devonian Extinction ◽  
Cryptic Divergence

AbstractActinopterygian (ray-finned) fishes represent the principal vertebrate group in aquatic settings. This dominance is often attributed to their apparent success in the aftermath of the end-Devonian extinction. Increases in taxonomic and morphological diversity in the early Carboniferous, coupled with phylogenetic hypotheses implying the survival of few Devonian lineages, contribute to a model of explosive post-extinction radiation. However, most actinopterygian fossils from within a ca. 20 Myr window surrounding the end-Devonian extinction remain poorly known, contributing to uncertainty about these patterns. Here we present detailed anatomical data for an exceptionally preserved but diminutive ray-finned fish from within this gap, ~7 Myr prior to the Devonian-Carboniferous boundary. Representing a new genus and species, it bears a series of derived anatomical features otherwise known only from Carboniferous and younger taxa. It nests phylogenetically within a clade of post-Devonian species and, in an expanded phylogenetic analysis incorporating other previously neglected taxa, draws at least ten lineages of Carboniferous actinopterygians into the Late Devonian. This suggests phenotypically cryptic divergence among ray-finned fishes in the latest Devonian, followed by more conspicuous diversification in feeding and locomotor structures in the Carboniferous. This revised model finds parallels in patterns emerging for other clades, and provides a refined perspective on key events early in the history of a group that today contains half of all living vertebrate species.

scholarly journals Correction to: Unraveling unique island colonization events in Elachistocleis frogs: phylogeography, cryptic divergence, and taxonomical implications

2021 ◽  
Author(s):  
Michael J. Jowers ◽  
Siti N. Othman ◽  
Amaël Borzée ◽  
Gilson A. Rivas ◽  
Santiago Sánchez-Ramírez ◽  
...  
Keyword(s):  
Island Colonization ◽  
Cryptic Divergence

Comparison of morphological and genetic analyses reveals cryptic divergence and morphological plasticity in Stylophora (Cnidaria, Scleractinia)

Coral Reefs ◽  
2011 ◽  
Vol 30 (4) ◽  
pp. 1033-1049 ◽  
Author(s):  
Fabrizio Stefani ◽  
F. Benzoni ◽  
S.-Y. Yang ◽  
M. Pichon ◽  
P. Galli ◽  
...  
Keyword(s):  
Morphological Plasticity ◽  
Genetic Analyses ◽  
Cryptic Divergence
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