The normal development and the chromosome No. 1 syndrome in Triturus carnifex carnifex (Caudata, Salamandridae)

Détails

ID Serval
serval:BIB_EBCEA1528F52
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The normal development and the chromosome No. 1 syndrome in Triturus carnifex carnifex (Caudata, Salamandridae)
Périodique
Italian Journal of Zoology
Auteur⸱e⸱s
D'Amen Manuela, Vignoli Leonardo, Bologna Marco A.
ISSN
1125-0003
ISSN-L
1125-0003
Statut éditorial
Publié
Date de publication
2006
Volume
73
Numéro
4
Pages
325-333
Langue
anglais
Notes
ISI:000243290900005
Résumé
The normal development of the newt Triturus carnifex carnifex is described from deposition to hatching and illustrated with the use of photographs of living embryos. The embryogenesis process is divided into five major phases (cleavage, gastrulation, neurulation, and organogenesis process split in two phases tail bud and 'larva') and into a sequence of 42 stages. A comparison to the staging scheme of development of some co-generic species is provided. An average of 50% (38-62%) of T. carnifex embryos arrested development and died during the tail bud stages, confirming the presence of chromosome No. 1 heteromorphism in the nominate subspecies. Trait characteristics of two embryonic phenotypes were identified among the arrested embryos that were caused by the development arrest syndrome. Several features which have never been described previously were observed, such as the formation of a blister in the embryo ventral side, under the gill region in all homomorphic embryos.
Mots-clé
embryo development, Triturus, chromosomic syndrome
Web of science
Open Access
Oui
Création de la notice
24/10/2013 11:10
Dernière modification de la notice
20/08/2019 17:14
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