Heritable Characteristics in the Pearl Oyster<i>Pinctada martensii</i>: Comparisons of Growth and Shell Morphology of Chinese and Indian Populations, and Reciprocal Crosses

Gu, Zhenxin; Shi, Yaohua; Wu, Yan; Wang, Aimin

doi:10.2983/035.030.0207

Cited by 19 publications

(3 citation statements)

References 28 publications

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“…The pearl oyster industry has become one of the most important mariculture industries in several southern provinces of China, including Guangdong, Guangxi, and Hainan (Wang et al, 2004;Deng et al, 2009aDeng et al, , 2011He et al, 2021;Xu et al, 2021). However, the conditions are changing due to the slow growth and mass mortalities of oysters (Deng et al, 2011;Gu et al, 2011). Pearl production dropped sharply in recent years, and the cultivate industry was dealt a huge blow.…”

Section: Introductionmentioning

confidence: 99%

“…These theories provide a feasible scheme for improving the growth characteristics of bivalves (Newkirk, 1980;Evans and Langdon, 2006;Schöne et al, 2021). Numerous studies have confirmed effective improvement in commercial traits of bivalve species through selective experiments (Deng et al, 2009b;Gu et al, 2011;Li et al, 2011;Zhang et al, 2018). Physiological differences between improved selected and non-selected groups were explored (Bayne et al, 1999;Zhang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

Zhang

et al. 2021

Front. Mar. Sci.

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Pearl oyster (Pinctada fucata martensii) is the main species cultured for marine pearls in the world. A breeding program was carried out for desirable production traits, including high growth rate, and a fast-growing selective strain of pearl oysters was established. In the current study, we compared the growth characteristics between a selective strain and a cultured population of P. f. martensii in Beihai, Guangxi Province, China. Large size (SL) and small size (SS) individuals of the selective strain were selected, and the differences of physiological and metabolic indexes, such as feeding, respiration, excretion, and enzyme activities between SL and SS and cultured population (CL), were also compared. The results showed that at the age of 6 months, pearl oysters of the selective strain were 14.61% larger than CL, and the proportion of SL (30–40 mm) was 59%, which was two times higher than CL (28%). SL with a rapid growth rate had a high clearance rate (CR), and the CR of SL was about 1.8 times higher than that of CL and 5 times higher than that of SS. In addition, the activities of digestive enzymes (amylase, pepsin, and lipase) and growth-related carbonic anhydrase enzymes in SL were higher than those in the other two groups (p < 0.05). SS with a slow growth rate had higher oxygen consumption (OCR) and ammonia excretion (AER) rates than SL and CL (p < 0.05). Our results suggest that the rapid growth of the selective strain P. f. martensii can be attributed to increased energy intake and reduced energy consumption.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

Zhang

et al. 2021

Front. Mar. Sci.

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“…In this study, the average values for the nacre color parameters differed nonsignificantly between the left and right sides of the shells in each mussel population (P > 0.05). Based on the variations and heritability of mussel shell color, phenotypic differences in this characteristics are more appropriate genetic markers for group classification and variety breeding than morphological markers, such as those used for clams (Sokolowski et al, 2002), pacific oyster (Evans et al, 2009), pearl oyster (Gu et al, 2011), and scallops (Qin et al, 2007;Yuan et al, 2012). Our results showed that each color parameter (except L* and dE* in DT) of the breeding population was significantly different from that of the other populations, while the color parameters showed no significant difference among the PY, DT, FP, and JX populations.…”

Section: Analysis Of Shell Color Variationmentioning

confidence: 99%

Comparative analysis of shell color variety and genetic structure among five high-quality freshwater pearl mussel populations

Bai

Liu

et al. 2016

Genet. Mol. Res.

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ABSTRACT. Four Hyriopsis cumingii populations, a breeding population (BP), a cultured population (FP), two wild populations from Poyang Lake (PY) and Dongting Lake (DT), and an H. schlegelii population were collected (JX), and the first filial generations (F1) were bred synchronously. The shell nacre polymorphisms, population genetic diversity, and genetic structures of the F1 of each population were analyzed and compared using CIELAB colorimetric measurements and microsatellite markers. The color parameters of the shell nacre (L*, a*, dE*) in the BP were significantly different from those in the FP, PY, and JX populations (P < 0.05), whereas the shell nacre color did not differ significantly between the left and right sides of the shells within the same population (P > 0.05). The BP had relatively darker nacre at the posterior end of the shell, and the color parameters (L*, a*, b*, and dE*) differed significantly from those at the front end (P < 0.05). The five populations showed relatively high levels of genetic diversity (H O = 0.733-0.829). The genetic distance between the H. cumingii populations and H. schlegelii was the greatest, whereas that within the H. cumingii populations and between the FP and the PY population was the smallest. All the individuals tested in this study were optimally grouped into four theoretical populations. In conclusion, the BP was significantly different from the base populations of PY and DT in terms of genetic background and phenotypic parameters of shell nacre color, with potential for further genetic improvement.

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Genetics in aquaculture

Gosling¹

2015

Marine Bivalve Molluscs

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Heritable Characteristics in the Pearl OysterPinctada martensii: Comparisons of Growth and Shell Morphology of Chinese and Indian Populations, and Reciprocal Crosses

Cited by 19 publications

References 28 publications

Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

Comparative analysis of shell color variety and genetic structure among five high-quality freshwater pearl mussel populations

Genetics in aquaculture

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