New Insights into Different Reproductive Effort and Sexual Recruitment Contribution between Two Geographic Zostera marina L. Populations in Temperate China

doi:10.3389/fpls.2018.00015

QIBEBT-IR

	New Insights into Different Reproductive Effort and Sexual Recruitment Contribution between Two Geographic Zostera marina L. Populations in Temperate China
	Xu, Shaochun 1,2,3; Wang, Pengmei 1,2,3; Zhou, Yi 1,2; Zhang, Xiaomei 1,2; Gu, Ruiting 1,2,3; Liu, Xujia 1; Liu, Bingjian 1; Song, Xiaoyue 1; Xu, Shuai 1; Yue, Shidong 1
	2018-02-12
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	9
摘要	Seagrasses are important components of global coastal ecosystems, and the eelgrass Zostera marina L. is widely distributed along the Atlantic and Pacific coasts in the temperate northern hemisphere, but limited datum related to the contribution of sexual reproduction to population recruitment have been reported. This study aimed to understand eelgrass sexual reproduction and population recruitment in Swan Lake (SLL), and Huiquan Bay (HQB) was included for comparison. Random sampling, permanent quadrats or cores and laboratory seed germination-based experimental methods were employed. The flowering, seed production, seed banks, seed germination, seedling survival, and seedling growth of eelgrass were investigated from July 2014 to December 2015 to evaluate the contribution of sexual reproduction to population recruitment. Results indicated a dominant role of asexual reproduction in HQB, while sexual reproduction played a relatively important role in SLL. The highest flowering shoot density in SLL was 517.27 +/- 504.29 shoots m(-2) (June) and represented 53.34% of the total shoots at the center site. The potential seed output per reproductive shoot and per unit area in SLL were 103.67 +/- 37.95 seeds shoot(-1) and 53,623.66 +/- 19,628.11 seeds m(-2), respectively. The maximum seed bank density in SLL was 552.21 +/- 204.94 seeds m(-2) (October). Seed germination mainly occurred from the middle of March to the end of May, and the highest seedling density was 296.88 +/- 274.27 seedlings m(-2) in April. The recruitment from seedlings accounted for 41.36% of the Z. marina population recruitment at the center site, while the sexual recruitment contribution at the patch site (50.52%) was greater than that at the center site. Seeds in SLL were acclimated to spring germination, while in HQB, they were acclimated to autumn germination (early October-late November). Seed bank density in HQB was very low, with a value of 254.35 +/- 613.34 seeds m(-2) (early October). However, seeds in HQB were significantly larger and heavier than those in SLL (size: P = 0.004; weight: P < 0.001). The recruitment from seedlings accounted for as low as 2.53% of the Z. marina population recruitment in HQB. Our laboratory seed germination experiment, which was conducted in autumn, showed that the seed germination percent in HQB was significantly greater than in SLL at optimal germination temperatures (10 and 15. C; P < 0.001). A laboratory seed germination test at suitable temperature may be a potential novel approach to identify the ecological differences among different geographic populations. It is suggested that the Z. marina population recruitment may have different strategies and adapt to specific local conditions, such as in SLL and HQB, and the temperature regime may control morphological and phonological variations.
文章类型	Article
关键词	Zostera Marina L. Sexual Reproduction Clonal Growth Seed Bank Seedling Flowering Shoot Population Recruitment Temperature Regime
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.3389/fpls.2018.00015
关键词[WOS]	COASTAL BAY SYSTEM ; GULF-OF-CALIFORNIA ; LAGOON SWAN LAKE ; CHESAPEAKE BAY ; SEED-GERMINATION ; L EELGRASS ; GENETIC DIVERSITY ; SEAGRASS ECOSYSTEMS ; CENTRAL JAPAN ; ENVIRONMENTAL-FACTORS
收录类别	SCI
语种	英语
WOS研究方向	Plant Sciences
项目资助者	National Science & Technology Basic Work Program(2015FY110600) ; National Marine Public Welfare Research Project(201305043) ; NSFC-Shandong Joint Fund for Marine Science Research Centers(U1606404) ; key Research and Development Project of Shandong Province(2017GHY15111) ; Key Research Project of Frontier Sciences of CAS(QYZDB-SSW-DQC041-1) ; National Natural Science Foundation of China(41176140/41606192) ; Taishan Scholars Program
WOS类目	Plant Sciences
WOS记录号	WOS:000424754900001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：42[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/10642
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Zhou, Yi
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Shaochun,Wang, Pengmei,Zhou, Yi,et al. New Insights into Different Reproductive Effort and Sexual Recruitment Contribution between Two Geographic Zostera marina L. Populations in Temperate China[J]. FRONTIERS IN PLANT SCIENCE,2018,9.
APA	Xu, Shaochun.,Wang, Pengmei.,Zhou, Yi.,Zhang, Xiaomei.,Gu, Ruiting.,...&Yue, Shidong.(2018).New Insights into Different Reproductive Effort and Sexual Recruitment Contribution between Two Geographic Zostera marina L. Populations in Temperate China.FRONTIERS IN PLANT SCIENCE,9.
MLA	Xu, Shaochun,et al."New Insights into Different Reproductive Effort and Sexual Recruitment Contribution between Two Geographic Zostera marina L. Populations in Temperate China".FRONTIERS IN PLANT SCIENCE 9(2018).