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Population Scale Analysis of Centromeric Satellite DNA Reveals Highly Dynamic Evolutionary Patterns and Genomic Organization in Long-Tailed and Rhesus Macaques.
- Source :
- Cells (2073-4409); Jun2022, Vol. 11 Issue 12, p1953-N.PAG, 28p
- Publication Year :
- 2022
-
Abstract
- Centromeric satellite DNA (cen-satDNA) consists of highly divergent repeat monomers, each approximately 171 base pairs in length. Here, we investigated the genetic diversity in the centromeric region of two primate species: long-tailed (Macaca fascicularis) and rhesus (Macaca mulatta) macaques. Fluorescence in situ hybridization and bioinformatic analysis showed the chromosome-specific organization and dynamic nature of cen-satDNAsequences, and their substantial diversity, with distinct subfamilies across macaque populations, suggesting increased turnovers. Comparative genomics identified high level polymorphisms spanning a 120 bp deletion region and a remarkable interspecific variability in cen-satDNA size and structure. Population structure analysis detected admixture patterns within populations, indicating their high divergence and rapid evolution. However, differences in cen-satDNA profiles appear to not be involved in hybrid incompatibility between the two species. Our study provides a genomic landscape of centromeric repeats in wild macaques and opens new avenues for exploring their impact on the adaptive evolution and speciation of primates. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20734409
- Volume :
- 11
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Cells (2073-4409)
- Publication Type :
- Academic Journal
- Accession number :
- 157679616
- Full Text :
- https://doi.org/10.3390/cells11121953