Results for “sister”

There also exists a sister-group relationship between the Melanotaeniidae and Malagasy family Bedotiidae, which may seem surprising given their respective modern-day distributional patterns. The precise origin and subsequent dispersal of the two families has been the subject of debate, with some palentologists suggesting that Madagascar's freshwater fishes derived froma trans-oceanic dispersal during the Cenozoic Era, but the most compelling arguments currently indicate a freshwater radiation which occurred during the Mezozoic break-up of Gondwana.

Prior to its description this species had been considered a form of A. anatoliae and also referred to as A. sp. aff. danfordii but collections in the early part of this century motivated new studies and resulted in its elevation to full species level. Phylogenetic analyses have shown it to represent the sister group to all other Anatolian Aphanius spp. The Anatolia region represents a centre of diversity for the genus with ten endemic species described to date. These are thought to have diverged ...

E. caudiocellatus can be told apart from congeners by lacking a dark lateral stripe and possessing a prominent dark marking on the caudal peduncle. In recent years a number of phylogenetic studies involving Esomus and its near relatives have been conducted and conflicting results published. For example a 2003 study by Fang et al. concluded that the genus is the sister group, i.e., most closely-related to...

Originally described as a member of Barilius (Annandale, 1918) but Howes (1980a) considered it more closely related to cheline cyprinids (Chela and Laubuca spp.) based on morphological characters and erected the genus Inlecypris for it (Howes, 1980b). Fang (2003) supported Howes' conclusions in her 2003 phylogenetic study of the genus Danio, hypothesising that Inlecypris and Chela together form a sister group to Devario.