气候变化领域集成服务门户(CCPortal): Microsatellite genotyping of Mediterranean population of Ircinia fasciculata and Ircinia variabilis

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.860018
	Microsatellite genotyping of Mediterranean population of Ircinia fasciculata and Ircinia variabilis
	Riesgo; Ana; Pérez-Portela; Rocío; Pita; Lucía; Blasco; Gema; Erwin; Patrick S; López-Legentil; Susanna
发布日期	2016-04-28
数据集类型	dataset
英文简介	Recent episodes of mass mortalities in the Mediterranean Sea have been reported for the closely related marine sponges Ircinia fasciculata and I. variabilis, which live in sympatry. In this context, the assessment of the genetic diversity, bottlenecks and connectivity of these sponges has become urgent in order to evaluate the potential effects of mass mortalities on their latitudinal range. Our study aims to establish 1.) the genetic structure, connectivity, and signs of bottlenecks across the populations of I. fasciculata, and 2.) the hybridization levels between I. fasciculata and I. variabilis. To accomplish the first objective, 194 individuals of I. fasciculata from 12 locations across the Mediterranean were genotyped at 14 microsatellite loci. For the second objective, mitochondrial cytochrome c oxidase subunit I sequences of 16 individuals from both species were analyzed along with genotypes at 12 microsatellite loci of 40 individuals coexisting in 3 Mediterranean populations. We detected strong genetic structure along the Mediterranean for I. fasciculata, with high levels of inbreeding in all locations and bottleneck signs in most locations. Oceanographic barriers like the Almeria-Oran front, North-Balearic front, and the Ligurian-Thyrrenian barrier seem to be impeding gene flow for I. fasciculata, adding population divergence to the pattern of isolation by distance derived from the low dispersal abilities of sponge larvae. Hybridization between both species occurred in some populations, which might be increasing genetic diversity and somewhat palliating the genetic loss caused by population decimation in I. fasciculata
空间范围	Latitude: 36.000000 * Longitude: 16.000000
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216855
推荐引用方式 GB/T 7714	Riesgo,Ana,Pérez-Portela,et al. Microsatellite genotyping of Mediterranean population of Ircinia fasciculata and Ircinia variabilis.2016-04-28.https://doi.org/10.1594/PANGAEA.860018.