Systematics and biogeography of the genus Phalloptychus Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae)
نویسندگان
چکیده
منابع مشابه
Historical biogeography of the livebearing fish genus Poeciliopsis (Poeciliidae: Cyprinodontiformes).
To assess the historical biogeography of freshwater topminnows in the genus Poeciliopsis, we examined sequence variation in two mitochondrial genes, cytochrome b (1140 bp) and NADH subunit 2 (1047 bp). This widespread fish genus is distributed from Arizona to western Colombia, and nearly half of its 21 named species have distributions that border on the geologically active Trans-Mexican Volcani...
متن کاملSystematics of the Neotropical Characiform Genus Psectrogaster Eigenmann and Eigenmann (Pisces: Characiformes)
Vari, Richard P. Systematics of the Neotropical Characiform Genus Psectrogaster Eigenmann and Eigenmann (Pisces: Characiformes). Smithsonian Contributions to Zoology, number 481, 43 pages, 23 figures, 2 tables, 1989.—The genus Psectrogaster Eigenmann and Eigenmann is shown to constitute a monophyletic subunit of the family Curimatidae. A number of shared derived characters of the first to fourt...
متن کاملMolecular systematics and biogeography of the Neotropical monkey genus, Alouatta.
We take advantage of the broad distribution of howler monkeys from Mexico to Argentina to provide a historical biogeographical analysis on a regional scale that encompasses the entire Neotropics. The phylogenetic relationships among 9 of the 10 recognized Alouatta species were inferred using three mitochondrial and two nuclear genes. The nuclear gene regions provided no phylogenetic resolution ...
متن کاملMolecular systematics and biogeography of the genus Zizina (Lepidoptera: Lycaenidae)
Butterflies of the genus Zizina are widely distributed in all zoogeographical regions except the New World (North and South America) and the northern part of Eurasia. We address some of the problems in regard to the taxonomy and biogeography of the genus. We inferred phylogenetic relationships for all four species in the current classification of this genus from the ND5 region of mtDNA. From ou...
متن کاملReproductive Adaptations among Viviparous Fishes (cyprinodontiformes: Poeciliidae).
Within the family Poeciliidae, a wide range of adaptations accompanying viviparity has evolved. The reproductive mechanisms of five representative species were examined and related to the habitats in which they are employed. Poecilia reticulata, the guppy, represents the majority of poeciliids which have a single stage of embryos in the ovary at a time. Most of the nutrients are prepack-aged in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Neotropical Ichthyology
سال: 2005
ISSN: 1679-6225
DOI: 10.1590/s1679-62252005000300004