Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China

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	Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China
	Liu Feng; Pang Shaojun; Gao Suqin; Shan Tifeng
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2013-11-01
卷号	31 期号:6 页码:1268-1275
关键词	Sargassum muticum receptacle gamete release fertilization rate north China coast
ISSN号	0254-4059
通讯作者	Pang, SJ
中文摘要	Sargassum muticum is one of the most abundant and conspicuous native macroalgae species on the northern coasts of China. It often forms large-scale seaweed beds in subtidal zones. This investigation was designed to understand the intraspecific genetic relationships of this alga based on samples collected from four northern coastal sites of China, and to evaluate gamete release and growth capacity in laboratory conditions. The nuclear internal transcribed spacer 2 (ITS2) sequences of 16 samples from four locations were identical. Based on cox3 gene and partial rbcLS operon sequences, intraspecific genetic variability was detected with three and two ribotypes, respectively. Temperature, not irradiance, was shown to significantly affect gamete release and fertilization. Elevated temperature and irradiance enhanced the growth of germlings and vegetative branchlets. Maximum growth rate of germlings was detected at 18-24 degrees C and an irradiance of 60-100 mu mol photons/(m(2).s). Under ambient conditions (12-25 degrees C and 60-125 mu mol photons/(m(2).s)), relative growth rate of young branchlets could reach 7.5%/d.
英文摘要	Sargassum muticum is one of the most abundant and conspicuous native macroalgae species on the northern coasts of China. It often forms large-scale seaweed beds in subtidal zones. This investigation was designed to understand the intraspecific genetic relationships of this alga based on samples collected from four northern coastal sites of China, and to evaluate gamete release and growth capacity in laboratory conditions. The nuclear internal transcribed spacer 2 (ITS2) sequences of 16 samples from four locations were identical. Based on cox3 gene and partial rbcLS operon sequences, intraspecific genetic variability was detected with three and two ribotypes, respectively. Temperature, not irradiance, was shown to significantly affect gamete release and fertilization. Elevated temperature and irradiance enhanced the growth of germlings and vegetative branchlets. Maximum growth rate of germlings was detected at 18-24 degrees C and an irradiance of 60-100 mu mol photons/(m(2).s). Under ambient conditions (12-25 degrees C and 60-125 mu mol photons/(m(2).s)), relative growth rate of young branchlets could reach 7.5%/d.
学科主题	Marine & Freshwater Biology ; Oceanography
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]	Limnology ; Oceanography
研究领域[WOS]	Marine & Freshwater Biology ; Oceanography
关键词[WOS]	YENDO FENSHOLT ; BROWN ALGA ; SOUTHWEST NETHERLANDS ; NORTH COAST ; POPULATIONS ; REPRODUCTION ; TEMPERATURE ; ECOLOGY ; SPAIN ; VARIABILITY
收录类别	SCI
原文出处	10.1007/s00343-013-2314-9
语种	英语
WOS记录号	WOS:000326628800013
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16598]
专题	海洋研究所_实验海洋生物学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Liu Feng,Pang Shaojun,Gao Suqin,et al. Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(6):1268-1275.
APA	Liu Feng,Pang Shaojun,Gao Suqin,&Shan Tifeng.(2013).Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(6),1268-1275.
MLA	Liu Feng,et al."Intraspecific genetic analysis, gamete release performance, and growth of Sargassum muticum (Fucales, Phaeophyta) from China".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.6(2013):1268-1275.