魁蚶中国与韩国群体杂交子一代生长比较

doi:10.16378/j.cnki.1003-1111.2020.02.009

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Abstract Four groups of hybrid F₁ of burnt-end ark Scapharca broughtonii, including Chinese population ♀×Korean population ♂ (HZ-1), Chinese population♀ ×Chinese population ♂ (ZZ), Korean population ♀×Chinese population ♂ (HZ-2), and Korean population ♀×Korean population♂ (HH), were established by reciprocal cross between Chinese population and Korean population. The juvenile shellfish were reared in a cage in the sea area (N 35°32′41.85″, E 119°41′29.49″) and sampled at the ages of 4, 5, 7, 9, 11 and 13 months to evaluate growth, survival and heterosis of juvenile shellfish. The variation trend of heterosis of shell length, shell height, shell width and wet body weight was found to be the same in HZ-1, with increase with the increase in age at the early stage, and the maximal at the age of 11 months (heterosis rate of 7.73% in shell length, 4.80% in shell height, 8.84% in shell width, and 27.44% in wet body weight, the maximal heterosis rate in body weight), and then significant decrease at the age of 13 months. The 7-month old and 11-month old HZ-2 had the basically positive values of the heterosis rate in the 4 traits, with the maximal value of 2.61%, and with heterosis rates in survival of 5.89% in HZ-1 and 4.15% in HZ-2, showing higher in HZ-1 than in HZ-2. Comprehensive analysis indicated that HZ-1 as an ideal breeding candidate had obvious heterosis in growth performance and survival rate. The findings provide theoretical support and technical reference for the development and utilization of germplasm resources and cross breeding of burnt-end ark.

Key words： Scapharca broughtonii hybridization/cross growth heterosis

Received: 10 May 2019

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	Articles by authors
	WU Yingying
	LIU Tong
	WANG Yingjun
	ZOU Yan
	SONG Aihuan
	LIU Hongjun

Cite this article:

WU Yingying,LIU Tong,WANG Yingjun, et al. Growth of Hybrid F₁ of Burnt-end Ark Scapharca broughtonii between Chinese and Korean Populations[J]. Fisheries Science, 2020, 39(2): 218-223.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.2020.02.009 OR https://www.shchkx.com/EN/Y2020/V39/I2/218

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