02744cam a2200409 a 4500 rbp3geomyidrode296brad CaSfIA 20201225224157.0 m o d cr|||||||||||| 110517s2010 txua ob s000 0 eng c OKS eng OKS OKS IXA CaSfIA pcc 599.3599 22 Bradley, Robert Douglas. Rbp3 in Geomyid rodents : reduced rate of molecular evolution or evidence for selection? / Robert D. Bradley, Cody W. Thompson, and Ryan R. Chambers. Lubbock, TX : Museum of Texas Tech University, [2010]. 1 online resource (16 pages : illustrations) Occasional papers / Museum, Texas Tech University, 0149-175X ; no. 296. Title from caption. "Texas Tech University, Natural Science Research Laboratory." "25 August 2010." Also available online. DNA sequences from the interphotoreceptor retinoid binding protein gene (Rbp3) in pocket gophers (Geomys) display an unusually slow rate of molecular evolution relative to other species of rodents. Rates of molecular evolution were examined in pocket gophers and other members of the rodent superfamily Geomyoidea to determine if this phenomenon was restricted to pocket gophers. DNA sequences from the Rbp3, mitochondrial 12S ribosomal RNA (12S rRNA), and mitochondrial cytochrome-b (Cytb) genes were compared within members of Geomys, among members of the Geomyidae, and among members of the Geomyoidea to ascertain rates of molecular evolution for the three genes among the various taxa. A variety of analyses (genetic distance, Tajima's relative rate test, Tajima's neutrality test, coalescence theory, and Hudson, Kreitman, and Aguad’© test) indicated that DNA sequences affiliated with Rbp3 in species of Geomys were evolving at a rate slower than were sequences of members of the Heteromyidae. In addition, there was weak evidence suggesting that the Rbp3 gene in other pocket gopher genera (Cratogeomys, Orthogeomys, Pappogeomys, and Thomomys) evolved more slowly than in members of the Heteromyidae. Includes bibliographical references (p. 14-15). Pocket gophers Genetics. Molecular evolution. Thompson, Cody W. Chambers, Ryan R. Texas Tech University. Museum. Texas Tech University. Natural Science Research Laboratory. Occasional papers (Texas Tech University. Museum) ; no. 296. http://www.nsrl.ttu.edu/publications/opapers/ops/op296.pdf Connect to this title online. https://archive.org/details/rbp3geomyidrode296brad Free eBook from the Internet Archive rbp3geomyidrode296brad no.296 (2010) ark:/13960/t4bp7km2m