生物
系统发育树
系统发育学
鞭毛
分子系统发育学
核糖体RNA
进化生物学
分类学(生物学)
植物
核糖体DNA
原生生物
动物
基因
遗传学
作者
Takashi Shiratori,Yuta Kato,Koichi Ishida
摘要
SUMMARY Minorisa is a group of tiny uniflagellates belonging to the Cercozoa. These flagellates are the closest heterotrophic relatives of photosynthetic chlorarachniophytes and are one of the most abundant bacterivorous eukaryotes in coastal marine environments. Despite their evolutionary and ecological importance, taxonomic studies on Minorisa have not been conducted since the original description. In the present study, we isolated five Minorisa strains and performed molecular phylogenetic and microscopic analyses. Molecular phylogenetic analysis using small subunit ribosomal RNA gene sequences indicated that the strains form four different subclades in Minorisa . Microscopic observations revealed that these Minorisa strains possess an amoeboid stage that lacks a flagellum. In the amoeboid stage, cells possess lobose and/or extrusive pseudopodia. Based on the phylogenetic analysis and morphological observations, we revised the description of Minorisa and described the following three novel Minorisa species: Minorisa fusiformis sp. nov., Minorisa magna sp. nov. and Minorisa megafusiformis sp. nov.
科研通智能强力驱动
Strongly Powered by AbleSci AI