TY - JOUR
T1 - The recombination landscapes of spiny lizards (genus Sceloporus)
AU - Versoza, Cyril J.
AU - Rivera, Julio A.
AU - Rosenblum, Erica Bree
AU - Vital-García, Cuauhcihuatl
AU - Hews, Diana K.
AU - Pfeifer, Susanne P.
N1 - Funding Information:
We are grateful to Adam Auton for sharing his code from previous publications as well as Jeffrey Jensen and Matthew Settles for helpful comments and discussion. DNA extraction, library preparation, and sequencing was performed at the UC Davis Genome Center and the Yale Center for Genomic Analysis. Computations were performed on Arizona State University’s High Performance Cluster and the Open Science Grid, which is supported by the National Science Foundation award #2030508.
Funding Information:
This work was supported by a National Science Foundation CAREER grant to SPP (DEB-2045343), and a National Science Foundation grant to EBR (DEB-1754125).
Publisher Copyright:
VC The Author(s) 2021.
PY - 2022/2
Y1 - 2022/2
N2 - Despite playing a critical role in evolutionary processes and outcomes, relatively little is known about rates of recombination in the vast majority of species, including squamate reptiles—the second largest order of extant vertebrates, many species of which serve as important model organisms in evolutionary and ecological studies. This paucity of data has resulted in limited resolution on questions related to the causes and consequences of rate variation between species and populations, the determinants of within-genome rate variation, as well as the general tempo of recombination rate evolution on this branch of the tree of life. In order to address these questions, it is thus necessary to begin broadening our phylogenetic sampling. We here provide the first fine-scale recombination maps for two species of spiny lizards, Sceloporus jarrovii and Sceloporus megalepidurus, which diverged at least 12 Mya. As might be expected from similarities in karyotype, population-scaled recombination landscapes are largely conserved on the broad-scale. At the same time, considerable variation exists at the fine-scale, highlighting the importance of incorporating species-specific recombination maps in future population genomic studies.
AB - Despite playing a critical role in evolutionary processes and outcomes, relatively little is known about rates of recombination in the vast majority of species, including squamate reptiles—the second largest order of extant vertebrates, many species of which serve as important model organisms in evolutionary and ecological studies. This paucity of data has resulted in limited resolution on questions related to the causes and consequences of rate variation between species and populations, the determinants of within-genome rate variation, as well as the general tempo of recombination rate evolution on this branch of the tree of life. In order to address these questions, it is thus necessary to begin broadening our phylogenetic sampling. We here provide the first fine-scale recombination maps for two species of spiny lizards, Sceloporus jarrovii and Sceloporus megalepidurus, which diverged at least 12 Mya. As might be expected from similarities in karyotype, population-scaled recombination landscapes are largely conserved on the broad-scale. At the same time, considerable variation exists at the fine-scale, highlighting the importance of incorporating species-specific recombination maps in future population genomic studies.
KW - Recombination
KW - Sceloporus jarrovii
KW - Sceloporus megalepidurus
KW - Spiny lizards
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U2 - 10.1093/g3journal/jkab402
DO - 10.1093/g3journal/jkab402
M3 - Article
C2 - 34878100
AN - SCOPUS:85124382554
SN - 2160-1836
VL - 12
JO - G3: Genes, Genomes, Genetics
JF - G3: Genes, Genomes, Genetics
IS - 2
M1 - jkab402
ER -