Paramecium tredecaurelia: A Unique Non-Polymorphic Species of the P. aurelia spp. Complex (Oligohymenophorea, Ciliophora)

被引：13

作者：

Przybos, Ewa ^{[1
]}

Tarcz, Sebastian ^{[1
]}

Surmacz, Marta ^{[1
]}

Sawka, Natalia ^{[1
]}

Fokin, Sergei I. ^{[2
]}

机构：

[1] Polish Acad Sci, Inst Systemat & Evolut Anim, Dept Expt Zool, PL-31016 Krakow, Poland

[2] Univ Pisa, Dept Biol, Unit Protozool, I-56100 Pisa, Italy

来源：

ACTA PROTOZOOLOGICA | 2013年 / 52卷 / 04期

关键词：

P. aurelia species complex; intraspecific polymorphism; rDNA (ITS1-5.8S-ITS2-5'LSU rDNA); cytochrome c oxidase subunit I gene (COI); cytochrome b gene (CytB); MOLECULAR CHARACTERIZATION; DNA-SEQUENCES; DIVERSITY; PROTOZOA; SYNGENS; QUADECAURELIA; DODECAURELIA; PHYLOGENIES; SPECIATION; GENETICS;

D O I：

10.4467/16890027AP.13.0022.1314

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

New stands of Paramecium tredecaurelia, a rare species of the P. aurelia spp. complex, were identified in Thailand and Madagascar on the basis of mating reactions and molecular markers (rDNA and mtDNA). Analysis of DNA fragments showed that all P. tredecaurelia strains, the recently recorded ones and the ones known previously from France, Mexico, and Israel, form a monophyletic and well-defined clade in the P. aurelia species trees. All of these strains, collected from different localities around the world, represent identical or nearly identical haplotypes in terms of all the studied DNA fragments. Given the huge distances between particular collection sites, such a low level of variability of the studied sequences may result from a slow rate of evolution in P. tredecaurelia.

引用

页码：257 / 266

页数：10

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