Study of population genetic structures of two hermatypic corals hyllia ancora and E. glabrescens

• Main Authors: Lin, Yih Cheng, 林益正
• Other Authors: Soong, Keryea
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/87969460150469179292

碩士 === 國立中山大學 === 海洋生物研究所 === 81 === There are major differences in reproductive modes between Euphyllia ancora and E.glabrescens. E.ancora is a gonochoristic species, which broadcasts gametes during a short spawing season E. glabrescens is hermaphroditic and broods larvae during extended season. Horizontal starch gel electrophoresis was used to investigate the population genetic variation of the two hermatypic corals. Euphyllia ancora were sampled at Tiao-Shi Hou-Bi-Hu, Jiu-Peng between December 1992 and May 1993. Eight enzymes (ARK, EST, GDH, HK, LAP, MDH, PGM) were examined. No genetic variation was detected in the two populations of E. glabrescens indicates small Nei's genetic distance (D=0.001- 0.002). The genetic structure in similar within populations of each of the two hermatypic corals in the areas investigated. In addition, an UPGMA cluster analysis of the Nei's genetic distance between Euphyllia ancora and E. glabrescens is 1.25.