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Evolutionary cytogenetics in salamanders
Salamanders (Amphibia: Caudata/Urodela) have been the subject of numerous cytogenetic studies, and data on karyotypes and genome sizes are available...
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Establishment of high-resolution FISH map** system and its application for molecular cytogenetic characterization of chromosomes in newt, Cynops pyrrhogaster (Urodela, Amphibia)
Urodele amphibians (newts and salamanders) are important animal models for understanding regeneration mechanisms and genome evolution. We constructed...
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Cytogenetics of Hylodes and Crossodactylus Species (Anura, Leptodactylidae) with Comments on Hylodinae/Dendrobatidae Relationships
The karyotype, nucleolar organizer region (NOR) location and C-banding pattern of two species of Hylodes ( H. phyllodes and H. asper ) and two of Crossodactylus...
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Sex chromosomes, sex-linked genes, and sex determination in the vertebrate class Amphibia
In this chapter the different categories of homomorphic and heteromorphic sex chromosomes, types of sex-determining mechanisms, known sex-linked...
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Chromosomal rearrangements as the source of variation in the number of chromosomes in Pseudis (Amphibia, Anura)
A cytogenetic study of Pseudis specimens from three localities in Rio Grande do Sul State, the southernmost Brazilian, was performed to identify...
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Cytological and molecular analysis in the rare discoglossid species, Alytes muletensis (Sanchiz & Adrover 1977) and its bearing on archaeobatrachian phylogeny
Cytogenetic and molecular data on Alytes muletensis (Amphibia: Discoglossidae) are compared with other representatives of archaeobatrachian frogs: Bomb...
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Chromosome banding in amphibia
A cytogenetic study performed on a population of the South American leptodactylid frog Eleutherodactylus maussi revealed multiple sex chromosomes of...
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Chromosome banding in Amphibia. XV. Two types of Y chromosomes and heterochromatin hypervariabilty inGastrotheca pseustes (Anura, Hylidae)
The chromosomes of the newly discovered South American marsupial frog Gastrotheca pseustes were analyzed by conventional methods and by various...
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Chromosome banding in Amphibia
The mitotic and meiotic chromosomes and interphase nuclei of the South American tree-frog Centrolenella antisthenesi were studied with various...
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Alternative life-history styles in reptiles
Reptiles are gonochorists (with the exception of a few parthenogenetic lizards and a single snake) and have relatively few young. Hermaphroditism is...
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Chromosome banding in Amphibia
The chromosomes of the South American marsupial frogs Gastrotheca fissipes, G. ovifera, G. walkeri and Flectonotus pygmaeus were analyzed by means of...
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A new chromosome number forBombina (Anura, Discoglossidae)
The karyotype of a primitive discoglossid anuran, Bombina maxima , native to southwestern China, has 2 n =28 chromosomes with 6 large and 8 small...
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Cytogenetics of the endemic New Zealand frog, Leiopelma hochstetteri: extraordinary supernumerary chromosome variation and a unique sex-chromosome system
Cytogenetic data from 6 populations demonstrated unusual supernumerary chromosome variation in the primitive frog, Leiopelma hochstetteri. Frogs from...
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Meiotic Divisions
Most studies of meiosis devote more attention to the meiotic prophase than to the subsequent phases of both meiotic divisions (“maturation...
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A Review of the Origin of Snakes
The problem of the origin of snakes has been a central issue in herpetology ever since the innovative work of Cope (1869). Although the riddle...
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Nucleolar organiser region (NOR) location in karyotypes of Australian ground frogs (family Myobatrachidae)
Nucleolar organiser regions (NORs) were examined in over 90% of the species of Australian ground frogs (familiy Myobatrachidae), including...
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Diversity of Sperm Basic Chromosomal Proteins in the Vertebrates: A Phylogenetic Point of View
In this paper we try to explain the variability of sperm basic proteins in nature by taking the subphylum Vertebrata as a starting point. The data...
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Nonmammalian Psychosexual Differentiation
Nonmammalian vertebrates have traditionally played a significant role in the study of morphological sexual differentiation, but they have been...