气候变化领域集成服务门户(CCPortal): Mitochondrial DNA diversity of sperm whales (Physeter macrocephalus) in the Gulf of California under a changing environment

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DOI	10.1016/j.rsma.2024.103504
	Mitochondrial DNA diversity of sperm whales (Physeter macrocephalus) in the Gulf of California under a changing environment
	Cruz-Villagran, Haide; Blanco-Jarvio, Anidia; Silva-Segundo, Claudia A.; Ramos-Rodriguez, Jose Alejandro; Flores-Ramirez, Sergio; Galvan-Tirado, Carolina; Mejia, Omar; Jimenez-Lopez, M. Esther; Rosales-Nanduca, Hiram
发表日期	2024
ISSN	2352-4855
起始页码	73
卷号	73
英文摘要	The mitochondrial diversity of the sperm whale in the Gulf of California (GC) from 2004 to 2017 was analyzed using the control region from 95 samples and compared with two preceding studies. This study examined the relationship between the mitochondrial genetic diversity of sperm whales, and the abundance of jumbo squid (Dosidicus gigas) in the GC, as indicated by squid catches. Furthermore, the influence of climate regimes on this relationship was also assessed. Of the total 16 haplotypes registered for the GC, eight haplotypes, representing 50%, were identified in this study. One of these haplotypes was only recorded in the Atlantic Ocean, and another is newly documented. Haplotype diversity (h = 0.640 +/- 0.051) and nucleotide diversity (pi = 0.00158 +/- 0.00019) showed lower values than those previously reported for the GC. The genetic differentiation index among three periods analyzed was significant (Fst = 0.27, p < 0.01), with a greater variability observed within periods (72.19%) compared to between periods (27.81%). This suggests either a differential influx of haplotypes or a preference of matrilines for specific areas within the GC. The sex ratio of 3.5:1 females to males was consistent with previously reported data for the GC and other regions. A temporal decrease in the number of haplotypes in the GC coincided with an increase in Sea Surface Temperature (SST), a decrease in chlorophyll values (Chl-a), and a reduction of giant squid catches. These trends suggest that shifts in the GC climate regime could exert selective pressure, favoring certain matrilineal lineages.
英文关键词	MtDNA; Nucleotide diversity; Haplotypes; Regime shift; Population genetics
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Ecology ; Marine & Freshwater Biology
WOS记录号	WOS:001230609500001
来源期刊	REGIONAL STUDIES IN MARINE SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300721
作者单位	Universidad Autonoma de Baja California; Universidad Autonoma de Baja California; Universidad Autonoma de Baja California; Universidad Autonoma de Baja California; Universidad Autonoma de Baja California; Instituto Politecnico Nacional - Mexico
推荐引用方式 GB/T 7714	Cruz-Villagran, Haide,Blanco-Jarvio, Anidia,Silva-Segundo, Claudia A.,et al. Mitochondrial DNA diversity of sperm whales (Physeter macrocephalus) in the Gulf of California under a changing environment[J],2024,73.
APA	Cruz-Villagran, Haide.,Blanco-Jarvio, Anidia.,Silva-Segundo, Claudia A..,Ramos-Rodriguez, Jose Alejandro.,Flores-Ramirez, Sergio.,...&Rosales-Nanduca, Hiram.(2024).Mitochondrial DNA diversity of sperm whales (Physeter macrocephalus) in the Gulf of California under a changing environment.REGIONAL STUDIES IN MARINE SCIENCE,73.
MLA	Cruz-Villagran, Haide,et al."Mitochondrial DNA diversity of sperm whales (Physeter macrocephalus) in the Gulf of California under a changing environment".REGIONAL STUDIES IN MARINE SCIENCE 73(2024).