Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae)

Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae) PDF Author: Marcelo Weksler
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 134

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Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae)

Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae) PDF Author: Marcelo Weksler
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 134

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Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae)

Phylogenetic Relationships of Oryzomine Rodents (Muroidea, Sigmodontinae) PDF Author: Marcelo Weksler
Publisher:
ISBN:
Category : Muridae
Languages : en
Pages : 156

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In this study I provide a phylogenetic hypothesis for the tribe Oryzomyini that can be used to understand the diversification and evolution of this group of rodents and to revise the current generic-level classification. Morphological and molecular data were used for these purposes in combined and separate analyses. Molecular data consisted of partial sequences (1266 bp) from the first exon of the nuclear gene encoding the interphotoreceptor retinoid binding protein (IRBP); the morphological matrix comprised 99 characters, including 16 integumental characters, 32 skull characters, 29 dental characters, 7 postcranial characters, and 10 characters from the phallus and soft-anatomy systems. I present anatomical descriptions for each character, including delineation of different states observed among oryzomyines. Results of the combined analysis were congruent with the IRBP-only dataset for oryzomyine higher-level relationships. Morphological analyses, although showing discrepancies from the combined or IRBP consensus cladograms and with low nodal support values, recovered several clades similar to the combined and IRBP analyses. Systematics of the tribe and the evolution of a few pivotal characters are discussed in light of the proposed phylogeny. Different taxonomic arrangements for species currently included in the genus Oryzomys are suggested. Finally, I evaluate evolutionary and biogeographic hypotheses that are compatible with our current knowledge on oryzomyine relationships.

Phylogenetic Relationships in Neotomine-Peromyscine Rodents (Muroidea) and a Reappraisal of the Dichotomy Within New World Cricetinae

Phylogenetic Relationships in Neotomine-Peromyscine Rodents (Muroidea) and a Reappraisal of the Dichotomy Within New World Cricetinae PDF Author: Michael D. Carleton
Publisher:
ISBN:
Category : Muridae
Languages : en
Pages : 646

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Phylogenetic Relationships in Neotomineperonyscine Rodents (Muroidea) and a Reappraisal of the Dichotomy Within New World Cricetinae

Phylogenetic Relationships in Neotomineperonyscine Rodents (Muroidea) and a Reappraisal of the Dichotomy Within New World Cricetinae PDF Author: Michael Dean Carleton
Publisher:
ISBN:
Category :
Languages : en
Pages : 146

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Evolution of the Rodents: Volume 5

Evolution of the Rodents: Volume 5 PDF Author: Philip G. Cox
Publisher: Cambridge University Press
ISBN: 1316298957
Category : Science
Languages : en
Pages : 627

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Book Description
The widespread use of mouse models in developmental, behavioural and genetic studies has sparked wider interest in rodent biology as a whole. This book brings together the latest research on rodents to better understand the evolution of both living and extinct members of this fascinating group. Topics analysed include the role of molecular techniques in the determination of robust phylogenetic frameworks; how geometric morphometric methods help quantify and analyse variation in shape; and the role of developmental biology in elucidating the origins of skeletal elements and the teeth. The editors unite these disciplines to present the current state of knowledge in rodent biology, whilst setting the landscape for future research. This book highlights interdisciplinary links across palaeontology, developmental biology, functional morphology, phylogenetics and biomechanics, making it a valuable resource for evolutionary biologists in all fields.

Evolutionary Relationships among Rodents

Evolutionary Relationships among Rodents PDF Author: W. Patrick Luckett
Publisher: Springer Science & Business Media
ISBN: 1489905391
Category : Science
Languages : en
Pages : 720

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Book Description
The order Rodentia is the most abundant and successful group of mammals, and it has been a focal point of attention for compar ative and evolutionary biologists for many years. In addition, rodents are the most commonly used experimental mammals for bio medical research, and they have played a central role in investi gations of the genetic and molecular mechanisms of speciation in mammals. During recent decades, a tremendous amount of new data from various aspects of the biology of living and fossil rodents has been accumulated by specialists from different disciplines, ranging from molecular biology to paleontology. Paradoxically, our understanding of the possible evolutionary relationships among different rodent families, as well as the possible affinities of rodents with other eutherian mammals, has not kept pace with this information "explosion. " This abundance of new biological data has not been incorporated into a broad synthesis of rodent phylo geny, in part because of the difficulty for any single student of rodent evolution to evaluate the phylogenetic significance of new findings from such diverse disciplines as paleontology, embryology, comparative anatomy, molecular biology, and cytogenetics. The origin and subsequent radiation of the order Rodentia were based primarily on the acquisition of a key character complex: specializations of the incisors, cheek teeth, and associated mus culoskeletal features of the jaws and skull for gnawing and chewing.

Bones, Clones, and Biomes

Bones, Clones, and Biomes PDF Author: Bruce D. Patterson
Publisher: University of Chicago Press
ISBN: 0226649210
Category : Science
Languages : en
Pages : 427

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Book Description
As explorers and scientists have known for decades, the Neotropics harbor a fantastic array of our planet’s mammalian diversity, from capybaras and capuchins to maned wolves and mouse opossums to sloths and sakis. This biological bounty can be attributed partly to the striking diversity of Neotropical landscapes and climates and partly to a series of continental connections that permitted intermittent faunal exchanges with Africa, Antarctica, Australia, and North America. Thus, to comprehend the development of modern Neotropical mammal faunas requires not only mastery of the Neotropics’ substantial diversity, but also knowledge of mammalian lineages and landscapes dating back to the Mesozoic. Bones, Clones, and Biomes offers just that—an exploration of the development and relationships of the modern mammal fauna through a series of studies that encompass the last 100 million years and both Central and South America. This work serves as a complement to more taxonomically driven works, providing for readers the long geologic and biogeographic contexts that undergird the abundance and diversity of Neotropical mammals. Rather than documenting diversity or distribution, this collection traverses the patterns that the distributions and relationships across mammal species convey, bringing together for the first time geology, paleobiology, systematics, mammalogy, and biogeography. Of critical importance is the book’s utility for current conservation and management programs, part of a rapidly rising conservation paleobiology initiative.

Molecular Phylogenetics of Neotropical Oryzomyine Rodents (Muridae: Sigmodontinae)

Molecular Phylogenetics of Neotropical Oryzomyine Rodents (Muridae: Sigmodontinae) PDF Author: Luis Fernando Garcia
Publisher:
ISBN:
Category :
Languages : en
Pages : 426

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A New Genus and Species of Rodent from Peru (muridae: Sigmodontinae) and Its Phylogenetic Relationships

A New Genus and Species of Rodent from Peru (muridae: Sigmodontinae) and Its Phylogenetic Relationships PDF Author: Lucia Alejandra Luna Wong
Publisher:
ISBN:
Category :
Languages : en
Pages : 276

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Bulletin of the American Museum of Natural History

Bulletin of the American Museum of Natural History PDF Author:
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 872

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