NECTRIA GRAY, 1840 (ECHINODERMATA, ASTEROIDEA): PROPOSED DESIGNATION OF NECTRIA OCELLATA PERRIER, 1875 AS THE TYPE SPECIES

Biology of Incidental Catch Sea Star Stellaster childreni Gray, 1840 (Echinodermata: Asteroidea), from Malaysian Borneo Exclusive Economic Zone

Sea star (class Asteroidea, phylum Echinodermata) is one of the most successful marine organisms inhabiting a wide range of habitats. As one of the key stone species, sea stars are responsible for maintaining much of the local diversity of species within certain communities. Malaysian Exclusive Economic Zone (EEZ) Resource Survey had been carried out from 16th Aug to 6th Nov 2015 and one of the...

Molecular phylogeny of the Valvatacea (Asteroidea: Echinodermata)

The Valvatacea is one the most ecologically important, taxonomically diverse, and widespread groups of postPalaeozoic (i.e. modern) Asteroidea. Classification within the group has been historically problematic. We present a comprehensively sampled, three-gene (12S, 16S, early-stage histone H3) molecular phylogenetic analysis of the Valvatacea. We include five of the six families within the Paxi...

Novel polyketide synthase from Nectria haematococca.

We identified a polyketide synthase (PKS) gene, pksN, from a strain of Nectria haematococca by complementing a mutant unable to synthesize a red perithecial pigment. pksN encodes a 2,106-amino-acid polypeptide with conserved motifs characteristic of type I PKS enzymatic domains: beta-ketoacyl synthase, acyltransferase, duplicated acyl carrier proteins, and thioesterase. The pksN product groups ...

A morphological and phylogenetic revision of the Nectria cinnabarina species complex

The genus Nectria is typified by N. cinnabarina, a wood-inhabiting fungus common in temperate regions of the Northern Hemisphere. To determine the diversity within N. cinnabarina, specimens and cultures from Asia, Europe, and North America were obtained and examined. Their phylogeny was determined using sequences of multiple loci, specifically act, ITS, LSU, rpb1, tef1, and tub. Based on these ...

A complex group I intron in Nectria galligena rDNA.