Adaptive tail-length evolution in deer mice is associated with differential Hoxd13 expression in early development.

Autor: Kingsley EP; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA. evan_kingsley@hms.harvard.edu.; Department of Genetics, Harvard Medical School, Boston, MA, USA. evan_kingsley@hms.harvard.edu., Hager ER; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.; Department of Biomedical Engineering, Boston University, Boston, MA, USA., Lassance JM; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.; GIGA Institute, University of Liège, Liège, Belgium., Turner KM; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.; Centre for Teaching Support & Innovation, University of Toronto, Toronto, Ontario, Canada., Harringmeyer OS; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA., Kirby C; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA., Neugeboren BI; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.; Environmental Health and Safety, Harvard University, Cambridge, MA, USA., Hoekstra HE; Department of Organismic & Evolutionary Biology, Department of Molecular & Cellular Biology, Museum of Comparative Zoology and Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA. hoekstra@oeb.harvard.edu.
Jazyk: angličtina
Zdroj: Nature ecology & evolution [Nat Ecol Evol] 2024 Apr; Vol. 8 (4), pp. 791-805. Date of Electronic Publication: 2024 Feb 20.
DOI: 10.1038/s41559-024-02346-3
Abstrakt: Variation in the size and number of axial segments underlies much of the diversity in animal body plans. Here we investigate the evolutionary, genetic and developmental mechanisms driving tail-length differences between forest and prairie ecotypes of deer mice (Peromyscus maniculatus). We first show that long-tailed forest mice perform better in an arboreal locomotion assay, consistent with tails being important for balance during climbing. We then identify six genomic regions that contribute to differences in tail length, three of which associate with caudal vertebra length and the other three with vertebra number. For all six loci, the forest allele increases tail length, indicative of the cumulative effect of natural selection. Two of the genomic regions associated with variation in vertebra number contain Hox gene clusters. Of those, we find an allele-specific decrease in Hoxd13 expression in the embryonic tail bud of long-tailed forest mice, consistent with its role in axial elongation. Additionally, we find that forest embryos have more presomitic mesoderm than prairie embryos and that this correlates with an increase in the number of neuromesodermal progenitors, which are modulated by Hox13 paralogues. Together, these results suggest a role for Hoxd13 in the development of natural variation in adaptive morphology on a microevolutionary timescale.
(© 2024. The Author(s).)
Databáze: MEDLINE
Externí odkaz: