Abstract:
:To assess phylogenetic relationships among the higher ruminants (infraorder Pecora, order Artiodactyla), we analyzed K-casein DNA sequences, including 434 nucleotides of the fourth exon. The higher ruminant families Bovidae, Cervidae, Giraffidae, and Antilocapridae each have monophyletic K-casein sequences. Maximum parsimony and distance analyses identify Giraffidae as a sister group to either Cervidae or a Bovidae-Cervidae clade and Antilocapridae as a sister group to a Bovidae-Cervidae-Giraffidae clade. At a higher level these four families occur as a monophyletic clade relative to Tragulidae and Suidae. Within Cervidae, the subfamily Odocoileinae is monophyletic and Cervinae and Muntiacinae occur as independent lineages within a separate clade. Within Bovidae, the subfamilies Bovinae and Caprinae are monophyletic. Genera within Cervinae (Cervus, Elaphurus) and Bovinae (Bison, Bos) are paraphyletic. There is intraspecific allelic variation in Cervus elaphus, Odocoileus hemionus, and Bison bison. The rate of K-casein fourth exon DNA sequence evolution is estimated to be about 0.004 nucleotide substitutions per million years. The K-casein phylogeny is discussed relative to other molecular and morphological data.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Cronin MA,Stuart R,Pierson BJ,Patton JCdoi
10.1006/mpev.1996.0078subject
Has Abstractpub_date
1996-10-01 00:00:00pages
295-311issue
2eissn
1055-7903issn
1095-9513pii
S1055-7903(96)90078-0journal_volume
6pub_type
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