Paralia (Bacillariophyta) stowaways in ship ballast: implications for biogeography and diversity of the genus.

ABSTRACT:

Background

The genus Paralia Heiberg is one of the most recognizable, widely distributed and commonly reported diatoms from contemporary coastal marine environments and ship ballast. Species discovery has historically been made in diatoms through the recognition of morphological discontinuities between specimens, first using light and later electron microscopy. However, recently, morphologically semi-cryptic species of Paralia were delineated using genetic analyses, among mostly tropical and subtropical sites.

Results

Ten morphological characters of the frustules and sequence fragments from the nuclear genome (conserved 18S regions of ribosomal RNA and the variable internal transcribed spacer [ITS]), and from the RuBisCo large subunit (rbcL) gene of the chloroplast genome we

SUBMITTER: MacGillivary ML 

PROVIDER: S-EPMC4389653 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature