Results 11 to 20 of about 16,811 (235)

Cellular basis of differential endochondral growth in Lake Malawi cichlids

Developmental Dynamics, Volume 251, Issue 12, Page 2001-2014, December 2022., 2022
Abstract Background The shape and size of skeletal elements is determined by embryonic patterning mechanisms as well as localized growth and remodeling during post‐embryonic development. Differential growth between endochondral growth plates underlies many aspects of morphological diversity in tetrapods but has not been investigated in ray‐finned ...
Savannah Johnson, Brian Heubel, Carson Bredesen, Thomas Schilling, Pierre Le Pabic   +4 more
wiley   +1 more source

Divergence and introgression among the virilis group of Drosophila

Evolution Letters, Volume 6, Issue 6, Page 537-551, December 2022., 2022
Abstract Speciation with gene flow is now widely regarded as common. However, the frequency of introgression between recently diverged species and the evolutionary consequences of gene flow are still poorly understood. The virilis group of Drosophila contains 12 species that are geographically widespread and show varying levels of prezygotic and ...
Leeban H. Yusuf, Venera Tyukmaeva, Anneli Hoikkala, Michael G. Ritchie   +3 more
wiley   +1 more source

Exotic asphyxiation: interactions between invasive species and hypoxia

Biological Reviews, Volume 98, Issue 1, Page 150-167, February 2023., 2023
ABSTRACT Non‐indigenous species (NIS) and hypoxia (<2 mg O2 l−1) can disturb and restructure aquatic communities. Both are heavily influenced by human activities and are intensifying with global change. As these disturbances increase, understanding how they interact to affect native species and systems is essential.
James E. Byers, Julie A. Blaze, Alannah C. Dodd, Hannah L. Hall, Paul E. Gribben   +4 more
wiley   +1 more source

Influence of microhabitat, fecundity, and parental care on the evolution of sexual size dimorphism in Caribbean Eleutherodactylus frogs

Evolution, Volume 76, Issue 12, Page 3041-3053, December 2022., 2022
Abstract Rensch's rule suggests that sexual size dimorphism (SSD) increases with species size when males are the larger sex, whereas it decreases when females are the larger sex. However, the process responsible for this pattern remains obscure. SSD can result from sexual selection, such as intrasexual competition for access to mates, or from natural ...
Alvaro Dugo‐Cota, Carles Vilà, Ariel Rodríguez, Alejandro Gonzalez‐Voyer   +3 more
wiley   +1 more source

Assessing the dietary sources of two cichlid species in River Nile sub-branches: Stomach contents, fatty acids and stable isotopes analyses

Egyptian Journal of Aquatic Research, 2016
We assess the importance of four different food sources as dietary components of Oreochromis niloticus and Sarotherodon galilaeus in Nile sub-branches using stomach contents, fatty acids (FA) and stable isotopes (SI) analyses.
Mohamad S. Abd El-Karim, Mohamad H.H. Ali, Abeer M.A. Mahmoud   +2 more
doaj   +1 more source

The effect of experimental hybridization on cognition and brain anatomy: Limited phenotypic variation and transgression in Poeciliidae

Evolution, Volume 76, Issue 12, Page 2864-2878, December 2022., 2022
Abstract Hybridization can promote phenotypic variation and often produces trait combinations distinct from the parental species. This increase in available variation can lead to the manifestation of functional novelty when new phenotypes bear adaptive value under the environmental conditions in which they occur. Although the role of hybridization as a
Catarina Vila‐Pouca, Hannah De Waele, Alexander Kotrschal   +2 more
wiley   +1 more source

Whole-genome sequences of Malawi cichlids reveal multiple radiations interconnected by gene flow

Nature Ecology & Evolution, 2017
The hundreds of cichlid fish species in Lake Malawi constitute the most extensive recent vertebrate adaptive radiation. Here we characterize its genomic diversity by sequencing 134 individuals covering 73 species across all major lineages.
M. Malinsky, H. Svardal, Alexandra Tyers, E. Miska, M. Genner, G. Turner, R. Durbin   +6 more
semanticscholar   +1 more source

Evolutionary divergence of 3’ UTRs in cichlid fishes

BMC Genomics, 2018
Background Post-transcriptional regulation is crucial for the control of eukaryotic gene expression and might contribute to adaptive divergence. The three prime untranslated regions (3’ UTRs), that are located downstream of protein-coding sequences, play
Peiwen Xiong, C. Darrin Hulsey, Axel Meyer, Paolo Franchini   +3 more
doaj   +1 more source

Genomics of Parallel Ecological Speciation in Lake Victoria Cichlids

Molecular biology and evolution, 2018
The genetic basis of parallel evolution of similar species is of great interest in evolutionary biology. In the adaptive radiation of Lake Victoria cichlid fishes, sister species with either blue or red‐back male nuptial coloration have evolved ...
J. Meier, D. Marques, C. Wagner, L. Excoffier, O. Seehausen   +4 more
semanticscholar   +1 more source

Speciation in sympatry with ongoing secondary gene flow and a potential olfactory trigger in a radiation of Cameroon cichlids

Molecular Ecology, 2018
The process of sympatric speciation in nature remains a fundamental unsolved problem. Cameroon crater lake cichlid radiations were long regarded as one of the most compelling examples; however, recent work showed that their origins were more complex than
J. Poelstra, E. Richards, C. Martin
semanticscholar   +1 more source