Phylogeny of mysticete whales based on mitochondrial and nuclear data

Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes)

“…In our study, the partition homogeneity test between the cyt b and CR revealed no signiWcant diVerences (P D 0.07 > 0.01), when using an adjusted of 0.01 as suggested by Cunningham (1997). Phylogenetic analyses using the combined data also resulted in better topology structure than individual gene sequences, just as Rychel et al (2004) indicated.…”

“…Many studies have demonstrated that the CR in vertebrates shows similar structure and conserved sequences (Lee et al, 1995;Randi and Lucchini, 1998;Sbisà et al, 1997;Southern et al, 1988), indicating evolutionary constraints and conservatism at various levels. Rychel et al (2004) mentioned that a better estimate of the true phylogeny may be obtained and/or overall clade Cobitis cf. sinensis1…”

Evolution of hyperphalangy and digit reduction in the cetacean manus

“…For odontocetes, the combined morphological and molecular tree of Messenger and McGuire (1998) was used. For mysticetes, recent studies based on mtDNA and nuclear DNA sequences (Rychel et al, 2004;Sasaki et al, 2005), and insertions of transposons (Nikaido et al, 2006) yield generally consistent results among taxa. To accurately trace the evolutionary history of hyperphalangy, character states were optimized onto both topologies in MacClade 4.0 (Maddison and Maddison, 2000) using ordered characters and the ACCTRAN option.…”

“…Here, we use a larger, taxonomically diverse sample of mysticetes and odontocetes. Although both studies optimize character states onto a phylogeny of odontocetes proposed by Messenger and McGuire (1998), the larger sample size of this study provided sufficient data to also trace characters onto a phylogeny of mysticetes (Rychel et al, 2004;Saski et al, 2005;Nikaido et al, 2006). This study also uses a different hypothesis of digital ray loss in tetradactylous mysticetes (i.e., loss of digital ray I).…”

Construction and Characterization of a Lipotes vexillifer Genomic DNA BAC Library

“…It is a gene unique to mammals that encodes alpha lactalbumin, which catalyzes the final step in lactose biosynthesis in the lactating mammary gland (Permyakov and Berliner, 2000). This gene has also been used as a molecular tool in the phylogenetic analysis of mysticete whales (Rychel et al, 2004), Delphinoidae (Waddell et al, 1999), human syntenic groups (Canavez et ., 1999), and Ruminantia (Hassanin and Douzery, 2003).…”