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http://dx.doi.org/10.1080/19768354.2011.622486

Sexual reproduction of the soft coral $Dendronephthya$ $castanea$ (Alcyonacea: Nephtheidae)  

Hwang, Sung-Jin (Division of EcoScience, Womans University)
Song, Jun-Im (Department of Life Sciences, Ewha Womans University)
Publication Information
Animal cells and systems / v.16, no.2, 2012 , pp. 135-144 More about this Journal
Abstract
$Dendronephthya$ $castanea$ Utinomi, 1952 is a member of the family Nephtheidae, and dominates shallow waters adjacent to the southern part of Jejudo Island, Korea. This species is a gonochoric internal brooder with a sex ratio of 1:1, and releases planulae around the time of the full and new moon from July to September, when the seawater temperature peaks. The gametogenic cycle is annual, and oogenesis (12 months) is longer than spermatogenesis (4-5 months). No difference in reproductive features including sexuality, sex ratio, gametogenesis and gametogenic cycles was found between the sympatric species $D.$ $castanea$ and $D.$ $gigantea$, and there was no temporal reproductive isolation. Investigation of the morphological taxonomy and molecular biology of these species indicates that they have very similar or identical traits, suggesting an absence of speciation and a need for taxonomic reclassification.
Keywords
sexual reproduction; gametogenesis; Dendronephthya castanea; soft coral; Anthozoa;
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