Translator Disclaimer
1 February 2001 PATTERNS OF KARYOTYPIC MEGAEVOLUTION IN REITHRODONTOMYS: EVIDENCE FROM A CYTOCHROME-b PHYLOGENETIC HYPOTHESIS
Author Affiliations +
Abstract

Phylogenetic relationships among 7 species of Reithrodontomys were examined using the complete mitochondrial cytochrome-b gene. DNA-sequence data were analyzed using parsimony (weighted and unweighted) and genetic distance methods. In all analyses, R. sumichrasti, R. megalotis, and R. zacatecae formed a monophyletic clade. Likewise, R. montanus and R. raviventris were depicted as sister taxa in all analyses. Our study supports recognition of R. zacatecae as a species distinct from R. megalotis and recognition of R. raviventris as distinct from R. montanus. Patterns of chromosomal evolution were examined using differential staining as resolved by 3 DNA probes and fluorescent in situ hybridization. Using the phylogeny based on DNA sequences, we concluded that there has been extensive chromosomal repatterning (in most cases karyotypic megaevolution) in the evolution of R. zacatecae, R. megalotis, R. sumichrasti, R. montanus, R. raviventris, and R. humulis.

Darin M. Bell, Meredith J. Hamilton, Cody W. Edwards, Lara E. Wiggins, Raul Muñiz MartÍnez, Richard E. Strauss, Robert D. Bradley, and Robert J. Baker "PATTERNS OF KARYOTYPIC MEGAEVOLUTION IN REITHRODONTOMYS: EVIDENCE FROM A CYTOCHROME-b PHYLOGENETIC HYPOTHESIS," Journal of Mammalogy 82(1), 81-91, (1 February 2001). https://doi.org/10.1644/1545-1542(2001)082<0081:POKMIR>2.0.CO;2
Received: 15 October 1999; Accepted: 13 June 2000; Published: 1 February 2001
JOURNAL ARTICLE
11 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top