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	Germ cells and fertilization differences among Japanese flounder Paralichthys olivaceus, summer flounder Paralichthys dentatus and their first and second generations
	Sui, J.1,2; Ma, D. Y.1; Liu, Q. H.1; Xu, S. H.1; Xiao, Z. Z.1; Lin, F.1,2; Xiao, Y. S.1; Li, J.1; Li, J (reprint author), Chinese Acad Sci, Inst Oceanol, Ctr Biotechnol R&D, Qingdao 266071, Peoples R China.
	2012-03-01
发表期刊	JOURNAL OF FISH BIOLOGY
ISSN	0022-1112
卷号	80期号:3页码:473-485
文章类型	Article
摘要	The morphology of gametes and the fertilization biology of Japanese flounder Paralichthys olivaceus (Po), summer flounder Paralichthys dentatus (Pd) and their hybrids were examined. Multiple generations (two hybrids: Po female x Pd male (F1) and Pd female x Po male; two backcrosses: F1 female x Po male and F1 female x Pd male) were obtained by artificial insemination. Comparison of egg ultrastructure among Po, Pd and F1 showed the morphology of micropyle region and the distribution density of pores were species specific. There were c. 100-200 accessory openings around the micropyle in Po, but not in Pd and F1. The zona radiata thickness and number of parallel bands were similar between F1 and Po, which were different from Pd. Comparison of spermatozoa ultrastructure revealed a close relationship between Po and Pd. Cytologically, the six crosses obeyed normal fertilization and cleavage processes, and only one male pronucleus was observed in a fertilized egg, indicating a monospermic fertilization pattern. Analysis of the time distribution from fertilization to first cleavage revealed an obvious delay at pronucleus fusion in the Pd x Po cross. The delay might indicate some cytoplasmic-nuclear incompatibility during the process of fertilization.
关键词	Cytology Gamete Hybrid Morphology Oocyte Spermatozoa
学科领域	Fisheries ; Marine & Freshwater Biology
DOI	10.1111/j.1095-8649.2011.03146.x
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000300933900001
引用统计	被引频次：5[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12226
专题	海洋生物技术研发中心 实验海洋生物学重点实验室
通讯作者	Li, J (reprint author), Chinese Acad Sci, Inst Oceanol, Ctr Biotechnol R&D, Qingdao 266071, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Biotechnol R&D, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Sui, J.,Ma, D. Y.,Liu, Q. H.,et al. Germ cells and fertilization differences among Japanese flounder Paralichthys olivaceus, summer flounder Paralichthys dentatus and their first and second generations[J]. JOURNAL OF FISH BIOLOGY,2012,80(3):473-485.
APA	Sui, J..,Ma, D. Y..,Liu, Q. H..,Xu, S. H..,Xiao, Z. Z..,...&Li, J .(2012).Germ cells and fertilization differences among Japanese flounder Paralichthys olivaceus, summer flounder Paralichthys dentatus and their first and second generations.JOURNAL OF FISH BIOLOGY,80(3),473-485.
MLA	Sui, J.,et al."Germ cells and fertilization differences among Japanese flounder Paralichthys olivaceus, summer flounder Paralichthys dentatus and their first and second generations".JOURNAL OF FISH BIOLOGY 80.3(2012):473-485.

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