By William C. Hamlett
Internal fertilization is common in chondrichthyan fishes and, as such, calls for a collection of organic actions, together with behavioral, morphological and physiological mechanisms, to make sure profitable copulation and fertilization. This quantity correlates on hand information and concepts about the improvement, reproductive morphology, functionality, and phylogeny of chondrichthyan fishes. assurance contains oogenesis, spermatogenesis, gestation, law of reproductive tract functionality, sperm garage, nutrient provision, placentation, and phylogeny. New and intriguing information is gifted together with the concept that yolk sac viviparity is the plesiomorphic nation instead of oviparity.
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Extra info for Reproductive Biology and Phylogeny of Chondrichthyes: Sharks, Batoids and Chimaeras (Reproductive Biology and Phylogeny, Vol 3)
Musick (eds), The Biology of Sea Turtles. CRC Press, New York. Broughton, R. , and Dowling, T. E. 1997. Evolutionary dynamics of tandem repeats in the mitochondrial DNA control region of the minnow Cyprinella spiloptera. Molecular Biology and Evolution. 14: 1187-1196. Brown, J. , Beckenbach, A. , and Smith, M. J. 1992. Mitochondrial-DNA length variation and heteroplasmy in populations of white sturgeon (Acipenser transmontanus). Genetics. 132: 221-228. " Reproductive Biology and Phylogeny of Chondrichthyes Buonaccorsi, V.
J. , 1984. Sharks of the world. An annotated and illustrated catalogue of sharks species known to date. FAO Fisheries Synopsis Nº 125, 4 (1 and 2): 655 pp. Douady, C. , Shivji, M. S. and Stanhope, M. J. 2003. Molecular phylogenetic evidence refuting the hypothesis of Batoidea (rays and skates) as derived sharks. Molecular Phylogeny and Evolution 26: 215-221. Duméril, A. H. A. 1865. Histoire naturelle des poissons ou ichthyologie générale. Tome premier, Élasmobranches, Plagiostomes et Holocéphales ou Chimères.
2001; Shivji et al. 2002; Chapman et al. 2003) markers. 6 PHILOPATRY AND SEX-BIASED DISPERSAL Studies that employ both mtDNA and microsatellites sometimes reveal disparate levels of genetic stock structure. Explanations for this phenomenon include sex-biased dispersal, differences in genetic effective population size of the two markers, and differences in the rate at which the two markers approach equilibrium with respect to migration and genetic drift (Buonaccorsi et al. 2001). Because mtDNA is maternally inherited it often shows a strong phylogeographic signal in species in which females exhibit natal philopatry such as sea turtles (Karl et al.
Reproductive Biology and Phylogeny of Chondrichthyes: Sharks, Batoids and Chimaeras (Reproductive Biology and Phylogeny, Vol 3) by William C. Hamlett