TY - JOUR
T1 - Patterns of karyotypic megaevolution in Reithrodontomys
T2 - Evidence from a cytochrome-b phylogenetic hypothesis
AU - Bell, D. M.
AU - Hamilton, M. J.
AU - Edwards, C. W.
AU - Wiggins, L. E.
AU - Martínez, R. M.
AU - Strauss, R. E.
AU - Bradley, R. D.
AU - Baker, R. J.
N1 - Copyright:
Copyright 2005 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2001
Y1 - 2001
N2 - 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.
AB - 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.
KW - Chromosomal evolution
KW - DNA sequences
KW - In situ hybridization
KW - Karyotypic megaevolution
KW - Reithrodontomys
UR - http://www.scopus.com/inward/record.url?scp=0035096918&partnerID=8YFLogxK
U2 - 10.1644/1545-1542(2001)082<0081:POKMIR>2.0.CO;2
DO - 10.1644/1545-1542(2001)082<0081:POKMIR>2.0.CO;2
M3 - Review article
AN - SCOPUS:0035096918
VL - 82
SP - 81
EP - 91
JO - Journal of Mammalogy
JF - Journal of Mammalogy
SN - 0022-2372
IS - 1
ER -