Global determinants of insect mitochondrial genetic diversity
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Global determinants of insect mitochondrial genetic diversity. / French, Connor M.; Bertola, Laura D.; Carnaval, Ana C.; Economo, Evan P.; Kass, Jamie M.; Lohman, David J.; Marske, Katharine A.; Meier, Rudolf; Overcast, Isaac; Rominger, Andrew J.; Staniczenko, Phillip P.A.; Hickerson, Michael J.
In: Nature Communications, Vol. 14, No. 1, 5276, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Global determinants of insect mitochondrial genetic diversity
AU - French, Connor M.
AU - Bertola, Laura D.
AU - Carnaval, Ana C.
AU - Economo, Evan P.
AU - Kass, Jamie M.
AU - Lohman, David J.
AU - Marske, Katharine A.
AU - Meier, Rudolf
AU - Overcast, Isaac
AU - Rominger, Andrew J.
AU - Staniczenko, Phillip P.A.
AU - Hickerson, Michael J.
N1 - Publisher Copyright: © 2023, Springer Nature Limited.
PY - 2023
Y1 - 2023
N2 - Understanding global patterns of genetic diversity is essential for describing, monitoring, and preserving life on Earth. To date, efforts to map macrogenetic patterns have been restricted to vertebrates, which comprise only a small fraction of Earth’s biodiversity. Here, we construct a global map of predicted insect mitochondrial genetic diversity from cytochrome c oxidase subunit 1 sequences, derived from open data. We calculate the mitochondrial genetic diversity mean and genetic diversity evenness of insect assemblages across the globe, identify their environmental correlates, and make predictions of mitochondrial genetic diversity levels in unsampled areas based on environmental data. Using a large single-locus genetic dataset of over 2 million globally distributed and georeferenced mtDNA sequences, we find that mitochondrial genetic diversity evenness follows a quadratic latitudinal gradient peaking in the subtropics. Both mitochondrial genetic diversity mean and evenness positively correlate with seasonally hot temperatures, as well as climate stability since the last glacial maximum. Our models explain 27.9% and 24.0% of the observed variation in mitochondrial genetic diversity mean and evenness in insects, respectively, making an important step towards understanding global biodiversity patterns in the most diverse animal taxon.
AB - Understanding global patterns of genetic diversity is essential for describing, monitoring, and preserving life on Earth. To date, efforts to map macrogenetic patterns have been restricted to vertebrates, which comprise only a small fraction of Earth’s biodiversity. Here, we construct a global map of predicted insect mitochondrial genetic diversity from cytochrome c oxidase subunit 1 sequences, derived from open data. We calculate the mitochondrial genetic diversity mean and genetic diversity evenness of insect assemblages across the globe, identify their environmental correlates, and make predictions of mitochondrial genetic diversity levels in unsampled areas based on environmental data. Using a large single-locus genetic dataset of over 2 million globally distributed and georeferenced mtDNA sequences, we find that mitochondrial genetic diversity evenness follows a quadratic latitudinal gradient peaking in the subtropics. Both mitochondrial genetic diversity mean and evenness positively correlate with seasonally hot temperatures, as well as climate stability since the last glacial maximum. Our models explain 27.9% and 24.0% of the observed variation in mitochondrial genetic diversity mean and evenness in insects, respectively, making an important step towards understanding global biodiversity patterns in the most diverse animal taxon.
U2 - 10.1038/s41467-023-40936-0
DO - 10.1038/s41467-023-40936-0
M3 - Journal article
C2 - 37644003
AN - SCOPUS:85168981503
VL - 14
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 5276
ER -
ID: 365817259