Genetic architecture underlying variation in different traits in the Pacific oyster Crassostrea gigas ...

• Main Author: Yin, Xiaoshen author
• Format: Thesis
• Language: English
• Published: University of Southern California Digital Library (USC.DL) 2019
• Subjects: Biology Marine Biology and Biological Oceanography degree program; Doctor of Philosophy degree; College of Letters, Arts and Sciences school; Pacific; Antarc*; Antarctica; Crassostrea gigas; Pacific oyster
• Online Access: https://dx.doi.org/10.25549/usctheses-c89-18956; https://digitallibrary.usc.edu/asset-management/2A3BF1W4Z7SU

As a species that has been introduced from Asia to all continents but Antarctica, the Pacific oyster Crassostrea gigas is of high economic value and great scientific significance. Farmed Pacific oysters play crucial roles in satisfying rapidly growing needs for wholesome, environmentally friendly, and economically viable seafood. More importantly, many interesting phenomena, including type III survivorship, Mendelian segregation distortion, inbreeding depression, heterosis, sex polymorphism, and sex reversal, widely observed in marine invertebrates like the Pacific oyster, are believed to be at least partially genetically determined. The availability of pedigreed lines and a sequenced genome enable the Pacific oyster to be a great model for exploring genetic causes for these phenomena in marine invertebrates. ? In order to produce high-yielding oyster seeds, we usually conduct diallel analysis, which can decompose the yield variance into genetic components, general combining ability (GCA), specific combining ...