caa a22 4500 47713680X CHVBK 20180405111720.0 cr unu---uuuuu 170330e19971201xx s 000 0 eng 10.1023/A:1027326631342 doi (NATIONALLICENCE)springer-10.1023/A:1027326631342 DNA-DNA Hybridization Evidence for the Recent Origin of Marmots and Ground Squirrels (Rodentia: Sciuridae) [Elektronische Daten] [Olivier Giboulet, Pascale Chevret, Raymond Ramousse, François Catzeflis] A molecular analysis, based on DNA/DNA hybridization experiments, examined seven species of the sciurid tribe Marmotini, in order to evaluate their evolutionary relationships. The branching pattern obtained from a neighbor-joining analysis and least-squares methods indicates that spermophiles and marmots are closely related. This result is in agreement with previous studies based on biochemical data which have suggested a Miospermophilus origin of Marmota (like Spermophilus), instead of the Protospermophilus origin usually proposed by paleontology. Using a molecular time scale calibrated by the fossil record of Sciurus (used here as an outgroup), we estimate the marmot/ground squirrel divergence at 6 My, at the same time as the major lineages of ground squirrels diverged from each other. Consequently, the species of Marmota appear as one of the numerous specialized forms derived from the explosive radiation of the Spermophilus lineage in the late Miocene. Plenum Publishing Corporation, 1997 molecular phytogeny nationallicence DNA/DNA hybridization nationallicence Sciuridae nationallicence ground squirrels nationallicence Marmota nationallicence Giboulet Olivier Laboratoire de Socioécologie & Conservation (J.E. 1942), UCB Lyon I, 69622, Villeurbanne Cedex, France aut Chevret Pascale Institut des Sciences de l'Evolution (UMR 5554 CNRS), Université Montpellier II, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France aut Ramousse Raymond Laboratoire de Socioécologie & Conservation (J.E. 1942), UCB Lyon I, 69622, Villeurbanne Cedex, France aut Catzeflis François Institut des Sciences de l'Evolution (UMR 5554 CNRS), Université Montpellier II, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France aut Journal of Mammalian Evolution Kluwer Academic Publishers-Plenum Publishers 4/4(1997-12-01), 271-284 1064-7554 4:4<271 1997 4 10914 https://doi.org/10.1023/A:1027326631342 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027326631342 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Giboulet Olivier Laboratoire de Socioécologie & Conservation (J.E. 1942), UCB Lyon I, 69622, Villeurbanne Cedex, France aut NATIONALLICENCE 700 1- Chevret Pascale Institut des Sciences de l'Evolution (UMR 5554 CNRS), Université Montpellier II, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France aut NATIONALLICENCE 700 1- Ramousse Raymond Laboratoire de Socioécologie & Conservation (J.E. 1942), UCB Lyon I, 69622, Villeurbanne Cedex, France aut NATIONALLICENCE 700 1- Catzeflis François Institut des Sciences de l'Evolution (UMR 5554 CNRS), Université Montpellier II, Place Eugène Bataillon, 34095, Montpellier Cedex 05, France aut NATIONALLICENCE 773 0- Journal of Mammalian Evolution Kluwer Academic Publishers-Plenum Publishers 4/4(1997-12-01), 271-284 1064-7554 4:4<271 1997 4 10914 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer