<p>Keywords: Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment</p>

doi:10.1016/j.hal.2022.102227

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Keywords: Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment
	Zhang, Qing-Chun 1,2,4; Liu, Chao 1,3; Wang, Jin-Xiu ; Kong, Fan-Zhou 2,4; Niu, Zhuang 1,3; Xiang, Ling 1,3; Yu, Ren-Cheng 1,2,3,4
刊名	HARMFUL ALGAE
	2022-05-01
卷号	114 页码:11
关键词	Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment
ISSN号	1568-9883
DOI	10.1016/j.hal.2022.102227
通讯作者	Yu, Ren-Cheng(rcyu@qdio.ac.cn)
英文摘要	The haptophyte Phaeocystis globosa, an important causative agent of harmful algal blooms globally, exhibits varying morphological and physiological features and high genetic diversity, yet the relationship among these has never been elucidated. In this study, colony sizes and pigment profiles of 19 P. globosa isolates from the Pacific and Atlantic Oceans were determined. Genetic divergence of these strains was analyzed using the chlo-roplast rbcS-rpl27 intergenic spacer, a novel high-resolution molecular marker. Strains could be divided into four genetic clades based on these sequences, or two groups based on colony size and the identity of diagnostic pigments (19 & PRIME;-hexanoyloxyfucoxanthin, hex-fuco, and 19 & PRIME;-butanoyloxyfucoxanthin, but-fuco). Three strains from the South China Sea (SCS), all belonging to the same genetic clade, have unique biological features in forming giant colonies and possessing but-fuco as their diagnostic pigment. Based on these findings, we propose that these SCS strains should be a unique "giant-colony " ecotype of P. globosa. During the period 2016-2021, more than 1000 rbcS-rpl27 sequences were obtained from 16 P. globosa colony samples and 18 phytoplankton samples containing solitary P. globosa cells in the SCS. Phylogenetic analysis indicated that > 95% of the sequences from P. globosa colonies in the SCS were comprised of the "giant-colony " ecotype, whereas the genetic diversity of solitary cells was much higher. Results demonstrated that intense blooms of P. globosa featuring giant colonies in the SCS were mainly caused by this giant-colony P. globosa ecotype.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB42040300] ; National Natural Science Foundation of China[42076140] ; National Natural Science Foundation of China[U20A20104] ; National Natural Science Foundation of China[41776127] ; Science and Technology (S&T) Basic Resources Investigation Program of China[2018YF100206]
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000791224100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/179209]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Yu, Ren-Cheng
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qing-Chun,Liu, Chao,Wang, Jin-Xiu,et al. Keywords: Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment [J]. HARMFUL ALGAE,2022,114:11.
APA	Zhang, Qing-Chun.,Liu, Chao.,Wang, Jin-Xiu.,Kong, Fan-Zhou.,Niu, Zhuang.,...&Yu, Ren-Cheng.(2022). Keywords: Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment .HARMFUL ALGAE,114,11.
MLA	Zhang, Qing-Chun,et al." Keywords: Phaeocystis globosa Ecotype Giant colony Genetic diversity Marker pigment ".HARMFUL ALGAE 114(2022):11.