کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6387734 1627573 2015 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genetic diversity and structure in two protected Posidonia oceanica meadows
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Genetic diversity and structure in two protected Posidonia oceanica meadows
چکیده انگلیسی
Posidonia oceanica meadows growing along the west Mediterranean coastline are under continuous anthropogenic pressure. The way meadow health correlates with genetic and genotypic diversity in P. oceanica, is still under debate. Here we report a microsatellite analysis of two P. oceanica meadows living in protected areas of the Ligurian (Monterosso al Mare, MPA of “Cinque Terre”) and central Tyrrhenian Sea (Santa Marinella, regional Site of Community Importance). Both meadows were recently classified as “disturbed”, according to shoot density and other phenological parameters. Between the two meadows, Santa Marinella showed higher genetic diversity, while clear genetic substructure was present in both sites, reflecting high spatial heterogeneity. The present study suggests that genetic diversity does not match unequivocally with shoot density and leaf morphology and that small scale intra-meadow heterogeneity is an important factor to consider for establishing the relation between genetic/genotypic variability and health of natural seagrass meadows.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 109, August 2015, Pages 124-131
نویسندگان
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