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Postembryonic staging of wild‐type goldfish, with brief reference to skeletal systems
Author(s) -
Li IngJia,
Chang ChunJu,
Liu ShiChieh,
Abe Gembu,
Ota Kinya G.
Publication year - 2015
Publication title -
developmental dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.634
H-Index - 141
eISSN - 1097-0177
pISSN - 1058-8388
DOI - 10.1002/dvdy.24340
Subject(s) - biology , zebrafish , carassius auratus , ontogeny , vertebrate , evolutionary biology , fish <actinopterygii> , anatomy , zoology , neuroscience , genetics , fishery , gene
Background : Artificial selection of postembryonic features is known to have established morphological variation in goldfish ( Carassius auratus ). Although previous studies have suggested that goldfish and zebrafish are almost directly comparable at the embryonic level, little is known at the postembryonic level. Results : Here, we categorized the postembryonic developmental process in the wild‐type goldfish into 11 different stages. We also report certain differences between the postembryonic developmental processes of goldfish and zebrafish, especially in the skeletal systems (scales and median fin skeletons), suggesting that postembryonic development underwent evolutionary divergence in these two teleost species. Conclusions : Our postembryonic staging system of wild‐type goldfish paves the way for careful and appropriate comparison with other teleost species. The staging system will also facilitate comparative ontogenic analyses between wild‐type and mutant goldfish strains, allowing us to closely study the relationship between artificial selection and molecular developmental mechanisms in vertebrates. Developmental Dynamics 244:1485–1518, 2015 . © 2015 Wiley Periodicals, Inc.