|Statement||B.F. Koop, R.J. Baker, and J.T. Mascarello.|
|Series||Occasional papers / The Museum, Texas Tech University,, no. 96 (15 Feb. 1985), Occasional papers (Texas Tech University. Museum) ;, no. 96.|
|Contributions||Baker, Robert J., Mascarello, J. T.|
|LC Classifications||QL737.R638 K66 1985|
|The Physical Object|
|Pagination||9 p. :|
|LC Control Number||85621546|
N Madhavan Nayar, in The Coconut, 1 Introduction. Phylogenetics is the study of the relationships of groups of organisms as reflected by their evolutionary history (King, Stansfield, & Mulligan, ).In the last 50 years, systematic biology has been literally transformed by phylogenetic studies relationships are now being based increasingly on the results of the analyses of clearly. The genus Neotoma (woodrats) is composed of 22 species (), which are divided into 4 subgenera (Neotoma, Teonopus, Hodomys, and Teonoma).The latter 3 subgenera are monotypic, whereas the subgenus Neotoma contains 19 species and 98 subspecies. Consequently, many of the taxonomic and systematic controversies concerning woodrats involve the subgenus Neotoma, which Cited by: Within many genera, more rearrangements occur in the 14 largest autosomal chromosomes of some congeneric species than distinguish the proposed primitive conditions for the genera Peromyscus. A cladistic analysis of Asarum was conducted to examine relationships among species within the genus and to test the monophyly of several groups of taxa that have often been treated as segregate genera. Thirty-two species were drawn from throughout the range of the genus, representing a broad sample of sections and all segregate genera.
Cladistic Analysis. Maximum parsimony (MP) analysis of G-banded karyotypes was performed using a 23 character-by-species data matrix established by assigning a value of 0 or 1 for the absence or presence, respectively, of each chromosome character in a species’ karyotype (Supplementary Table S1 online); characters were given equal weighting. Dear Colleagues, Chromosomal evolution is, nowadays, and more than ever, a highly relevant topic. The first chromosomes were visualized in the s, and the latest modal human chromosome number was determined correctly in ; humans are eager to learn more about their own chromosomal constitution in comparison to other species. Revision of the Wood Rats of the Genus Neotoma, Issues 24 xufiz. Revision of the wood rats of the genus Neotoma (Book, As a result, taxonomically comprehensive data sets amenable to cladistic analysis are available for only certain morphological characters (Carleton ) and banded chromosomes (Rogers et al.
Cladistic analysis of chromosomal evolution within the genus Neotoma. Vol. Occasional Papers, The Museum, Texas Tech University; pp. 1–9. Kosoy MY, et al. Prevalence of antibodies to arenaviruses in rodents from the southern and western United States: evidence for an arenavirus associated with the genus Neotoma. Revision of the Wood Rats of the Genus Neotoma, Issues Posted ; by xymyj; In 62; Leave a Comment on Revision of the Wood Rats of the Genus Neotoma, Issues ; Revision of the Wood Rats of the Genus Neotoma (Classic. Bureau of Biological Survey The Online Books. Posted on by cejur. Revision of the wood rats of the genus Neotoma (Book, Recent studies of chromosomal evolution within and among species of Reithrodontomys document that the genus is characterized by a high amount of chromosomal variability (Carleton and Myers, obbins; R and Baker, ; Engstrom et al., ). On the basis of standard karyotypic data, there appear to be two major groups.