BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING

	BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING
	Zhang, Shoudu 1,2; Li, Li 1; Wu, Fucun 1; Zhang, Guofan 1
刊名	JOURNAL OF SHELLFISH RESEARCH
	2013-12-01
卷号	32 期号:3 页码:709-718
关键词	bay scallop Chilean scallop hybridization partially sterile backcross Argopecten irradians
ISSN号	0730-8000
通讯作者	Zhang, GF
中文摘要	The growth characteristics and morphological features of the Atlantic bay scallop (Argopecten irradians irradians Lamarck), Chilean scallop (Argopecten purpuratus Lamarck), F1 hybrids of these species, and the offspring produced via 2 cycles of backcrossing between hybrid populations and the Atlantic bay scallop were examined to determine the feasibility of broadening the genetic basis of the bay scallop. Bidirectional fertilization and successful hatching were observed in F1 hybrids. Notable heterosis (i.e., >1% of the midparent values) was detected in growth and survival throughout the whole life span of the scallops. The F1 hybrids showed universal feminization, but with low fertilization and hatching rates observed in backcrosses with bay scallops (partial sterility). Hematoxylin-eosin staining of paraffin sections of the feminine gonads of the hybrids was performed in this study. The male gonad was found to be vestigial, without any active sperm, whereas the female gonad was well developed and presented abundant eggs with a normal appearance. Increasing fertilization and hatching rates were observed in the second generation of backcrosses between hybrid populations and bay scallops compared with the first backcrosses. At the same time, a growth advantage and low temperature resistance were regained in the offspring produced from backcrossed breeding. This study describes a promising way to broaden the genetic basis of bay scallops with the aim of improving the growth characteristics of cultured scallop stocks.
英文摘要	The growth characteristics and morphological features of the Atlantic bay scallop (Argopecten irradians irradians Lamarck), Chilean scallop (Argopecten purpuratus Lamarck), F1 hybrids of these species, and the offspring produced via 2 cycles of backcrossing between hybrid populations and the Atlantic bay scallop were examined to determine the feasibility of broadening the genetic basis of the bay scallop. Bidirectional fertilization and successful hatching were observed in F1 hybrids. Notable heterosis (i.e., >1% of the midparent values) was detected in growth and survival throughout the whole life span of the scallops. The F1 hybrids showed universal feminization, but with low fertilization and hatching rates observed in backcrosses with bay scallops (partial sterility). Hematoxylin-eosin staining of paraffin sections of the feminine gonads of the hybrids was performed in this study. The male gonad was found to be vestigial, without any active sperm, whereas the female gonad was well developed and presented abundant eggs with a normal appearance. Increasing fertilization and hatching rates were observed in the second generation of backcrosses between hybrid populations and bay scallops compared with the first backcrosses. At the same time, a growth advantage and low temperature resistance were regained in the offspring produced from backcrossed breeding. This study describes a promising way to broaden the genetic basis of bay scallops with the aim of improving the growth characteristics of cultured scallop stocks.
学科主题	Fisheries ; Marine & Freshwater Biology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Fisheries ; Marine & Freshwater Biology
研究领域[WOS]	Fisheries ; Marine & Freshwater Biology
关键词[WOS]	HYBRID VELIGER LARVAE ; BROWN TROUT ; OUTBREEDING DEPRESSION ; PERUVIAN SCALLOP ; PACIFIC OYSTERS ; SALMO-TRUTTA ; GROWTH-RATE ; HETEROSIS ; POPULATIONS ; CROSSES
收录类别	SCI
原文出处	10.2983/035.032.0312
语种	英语
WOS记录号	WOS:000331554700012
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16686]
专题	海洋研究所_海洋生物技术研发中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shoudu,Li, Li,Wu, Fucun,et al. BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING[J]. JOURNAL OF SHELLFISH RESEARCH,2013,32(3):709-718.
APA	Zhang, Shoudu,Li, Li,Wu, Fucun,&Zhang, Guofan.(2013).BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING.JOURNAL OF SHELLFISH RESEARCH,32(3),709-718.
MLA	Zhang, Shoudu,et al."BROADENING OF THE GENETIC BASIS OF THE ATLANTIC BAY SCALLOP ARGOPECTEN IRRADIANS AFTER INTERSPECIFIC HYBRIDIZATION AND BACKCROSSING".JOURNAL OF SHELLFISH RESEARCH 32.3(2013):709-718.