The contribution of intraspecific variation to future climate responses of brown algae

doi:10.1002/lno.12441

	The contribution of intraspecific variation to future climate responses of brown algae
	Li, Jing-Jing 1; Liu, Zheng-Yi2 ; Song, Wang-Hui 1; Qin, Song2
发表期刊	LIMNOLOGY AND OCEANOGRAPHY
ISSN	0024-3590
	2023-10-16
页码	14
DOI	10.1002/lno.12441
通讯作者	Liu, Zheng-Yi([email protected])
英文摘要	Intraspecific variation, which may arise through the interplay between environmental heterogeneity and adaptive variation, has consequences for the resilience of species to climate change. Here, we revealed the levels of intraspecific genomic variation and its causes in a widespread brown alga (Sargassum horneri). Our datasets included both benthic and floating samples from 20 populations sampled along a latitudinal gradient in the Chinese marginal seas. We prepared two datasets: 1) 4628 filtered single nucleotide polymorphisms (SNPs) for all samples, and 2) 20,735 filtered SNPs for only benthic samples. We conducted genotype-environment association analyses and outlier tests to identify adaptive loci for each dataset. Both neutral and adaptive SNPs revealed a deep genetic split between benthic populations in the North Yellow Sea (NYS) and East China Sea. Redundancy analysis demonstrated that temperature is a major factor driving adaptive divergence of benthic populations. Predictions of the lineage-level species distribution model revealed severe habitat loss of S. horneri in the NYS and eastern coasts of Korea under RCP8.5 in the 2100 s; however, the low-latitude boundary remained stable. Based on these results, we speculate that low-latitude populations may have high resilience to global warming. The dispersal routes of floating samples were determined by coastal currents; however, restricted gene flow between regions was detected. Thus, we speculate that opportunities for the recovery of depleted populations through natural gene flow may be limited. This study highlights the importance of applying conservation strategies (e.g., assisted gene flow) to protect coastal species from local extinction in the future.
资助机构	This study was funded by the National Natural Science Foundation of China (grant numbers 31700327 and 42006110), and the Fundamental Research Funds for the Central Universities (grant number B220202043). We would like to thank Zhi-Hai Zhong, Sheng-Zhi Xiao ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
收录类别	SCI
语种	英语
关键词[WOS]	SARGASSUM-HORNERI FUCALES ; R-PACKAGE ; BED RESTORATION ; DIVERSITY ; RESILIENCE ; INSIGHTS ; IMPACTS ; COASTAL
研究领域[WOS]	Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:001083139500001
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36709
专题	海岸带生物学与生物资源利用重点实验室海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
通讯作者	Liu, Zheng-Yi
作者单位	1.Hohai Univ, Jiangsu Prov Engn Res Ctr Marine Bioresources Sus, Nanjing, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Li, Jing-Jing,Liu, Zheng-Yi,Song, Wang-Hui,et al. The contribution of intraspecific variation to future climate responses of brown algae[J]. LIMNOLOGY AND OCEANOGRAPHY,2023:14.
APA	Li, Jing-Jing,Liu, Zheng-Yi,Song, Wang-Hui,&Qin, Song.(2023).The contribution of intraspecific variation to future climate responses of brown algae.LIMNOLOGY AND OCEANOGRAPHY,14.
MLA	Li, Jing-Jing,et al."The contribution of intraspecific variation to future climate responses of brown algae".LIMNOLOGY AND OCEANOGRAPHY (2023):14.