Unique features of myogenesis in Egyptian cobra (Naja haje) (Squamata: Serpentes: Elapidae)
نویسندگان
چکیده
منابع مشابه
The Development of the Skull of the Egyptian Cobra Naja h. haje (Squamata: Serpentes: Elapidae)
BACKGROUND The study of craniofacial development is important in understanding the ontogenetic processes behind morphological diversity. A complete morphological description of the embryonic skull development of the Egyptian cobra, Naja h. haje, is lacking and there has been little comparative discussion of skull development either among elapid snakes or between them and other snakes. METHODO...
متن کاملPhylogeography and systematic revision of the Egyptian cobra (Serpentes: Elapidae: Naja haje) species complex, with the description of a new species from West Africa
We use a combination of phylogenetic analysis of mtDNA sequences and multivariate morphometrics to investigate the phylogeography and systematics of the Egyptian cobra (Naja haje) species complex. Phylogenetic analysis of mitochondrial haplotypes reveals a highly distinct clade of haplotypes from the Sudano–Sahelian savanna belt of West Africa, and that the haplotypes of Naja haje arabica form ...
متن کاملPost-ovipositional development of the monocled cobra, Naja kaouthia (Serpentes: Elapidae).
External morphological development between oviposition and hatching of the monocled cobra, Naja kaouthia, is described. Ten developmental stages are diagnosed according to nine features. These include fusion of the body wall musculature along the ventral midline, appearance of the endolymphatic ducts, formation of the eyelid, and the appearance of scales on the head and body. Additional observa...
متن کاملSnake alpha-neurotoxin binding site on the Egyptian cobra (Naja haje) nicotinic acetylcholine receptor Is conserved.
Evolutionary success requires that animal venoms are targeted against phylogenetically conserved molecular structures of fundamental physiological processes. Species producing venoms must be resistant to their action. Venoms of Elapidae snakes (e.g., cobras, kraits) contain alpha-neurotoxins, represented by alpha-bungarotoxin (alpha-BTX) targeted against the nicotinic acetylcholine receptor (nA...
متن کاملGet an eyeful of this: a new species of giant spitting cobra from eastern and north-eastern Africa (Squamata: Serpentes: Elapidae: Naja)
We describe a new species of giant spitting cobra, Naja ashei sp. nov., from eastern and north-eastern Africa. The species was previously regarded as a colour phase of the black-necked spitting cobra, N. nigricollis. However, mtDNA sequence data show it to be more closely related to N. mossambica than N. nigricollis. The new species is diagnosable from all other African spitting cobras by the p...
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ژورنال
عنوان ژورنال: Protoplasma
سال: 2015
ISSN: 0033-183X,1615-6102
DOI: 10.1007/s00709-015-0840-3