A new freshwater species Conticribra sinica (Thalassiosirales, Bacillariophyta) from the lower reaches of the Yangtze River, China

IF 1.5 3区生物学 Q3 PLANT SCIENCES

Fottea Pub Date : 2022-08-31 DOI:10.5507/fot.2021.024

P. Yu, L. Yang, Q. You, Y. Bi, Quanxi Wang

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引用次数: 1

Abstract

: A new freshwater diatom species Conticribra sinica sp. nov. Yu, You et Wang from three lakes in the lower reaches of the Yangtze River, China, is described here using a combination of morphological and molecular data from ribosomal DNA genes. The primary distinguishing characteristic of C. sinica was the presence of a non–plicate or slightly–plicate valve face and a single ring marginal fultoportulae that was located at the junction between the valve face and the mantle. There were 4–11 valve face fultoportulae that were located at the subcenter of the valve face. In addition, a single rimoportula replaced a marginal fultoportulae. Areolae loculate were open to the outside by irregularly circular foramina or slit foramina that are radially arranged. Internally, cribra were continuously arranged long a radial arrangement of areolae. Characteristics of the new species with other similar species of Conticribra . Phylogenetic analysis of the nuclear small subunit (SSU) rDNA sequences and nuclear large subunit (LSU) rDNA gene sequences revealed that C. sinica in a single clade at a considerable sequence distance from the other Conticribra species.

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文章题目长江下游淡水新种中华螺纹藻(海硅藻门，硅藻门)

本文利用核糖体DNA基因的形态学和分子数据，对来自中国长江下游三个湖泊的一种新的淡水硅藻Conticbra sinica sp.nov.Yu，You et Wang进行了描述。C.sinica的主要区别特征是存在一个无重复或轻微重复的阀面和一个位于阀面和地幔交界处的单环边缘富尔托普孔。有4–11个瓣口位于瓣面的亚中心。此外，一个边缘孔取代了边缘孔。室室的Areolae由放射状排列的不规则圆形孔或狭缝孔向外开放。婴儿床内部连续排列，呈乳晕放射状排列。本新种与其他类似种的特征。对核小亚基（SSU）rDNA序列和核大亚基（LSU）rNA基因序列的系统发育分析表明，中华绒螯蟹是一个单一的分支，与其他大陆虫物种有相当的序列距离。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fottea 生物-植物科学

CiteScore

4.00

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Fottea is a journal of Czech Phycological Society (formerly bulletin Czech Phycology). Fottea publishes papers on all aspects of the ecology, physiology, biochemistry, cell biology, molecular biology, systematics and uses of algae (including cyanobacteria)