Genomics-Based Phylogenetic and Population Genetic Analysis of Global Samples Confirms Halophila johnsonii Eiseman as Halophila ovalis (R.Br.) Hook.f.
نویسندگان
چکیده
Halophila johnsonii is an endangered seagrass species that restricted to the southeast coast of Florida, United States. Its taxonomic status has been called into question, in particular, given close morphological and genetic similarity H. widely distributed morphologically variable ovalis , which largely Indo-Pacific region. While a relationship uncontroversial, it remains uncertain whether represents distinct lineage or recent introduction Florida Given conservation distinguishing these alternatives important implications for management its habitat. Here, we develop molecular data sets samples including DNA sequences, genome-wide SNPs microsatellites with view resolving affinities respect wider complex. Phylogenetic hypotheses based upon plastid (?18000 bp) low copy nuclear (?6500 sequences derived from hybrid capture, along 990 ddRAD consistently resolved within ovalis. Specifically, found affinity between sampled east Africa. In addition, specimens collected Antigua, are range variation typical virtually identical East African sequence analyses group together using Bayesian clustering SNPs. We conducted population large number over 17-year period. Genotypic generated through revealed uniformity all 132 across Indian River Lagoon, while Antigua shared same genotype as . conclude lack diversity absence sexual reproduction strongly indicates total actually one clone closely related populations Africa may be those regions.
منابع مشابه
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ژورنال
عنوان ژورنال: Frontiers in Marine Science
سال: 2021
ISSN: ['2296-7745']
DOI: https://doi.org/10.3389/fmars.2021.740958