(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.) > cellular organisms: NE > Eukaryota: NE > Alveolata: NE > Ciliophora: NE > Intramacronucleata: NE > Oligohymenophorea: NE > Peniculida: NE > Parameciidae: NE > Paramecium: NE > Paramecium octaurelia: NE
Warning: This entry is a compilation of different species or line or strain with more than 90% amino acid identity. You can retrieve all strain data
(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.) Paramecium tetraurelia: N, E.
LegendThis sequence has been compared to family alignement (MSA) red => minority aminoacid blue => majority aminoacid color intensity => conservation rate title => sequence position(MSA position)aminoacid rate Catalytic site Catalytic site in the MSA MKIILVLIITSLVFVRCTDQTSFFAELMGEDLPYYTETDYVKFKDVGSIY YHLILKEGTANLEAIQKGDVLAVWLNGGPGSSSQLGNYMEIGPWVITKNP DTAAKDKPYIVKKREYSWNKVMHLLFIDQPFGAGMSKADKENVVTNSDQA ANYFVETLKSIYTRLNGLDLVNTYIFGESYAGHYIPAFATRLLQDKETLD KVNFKGIAIIDGITDTENQLNYYHSYLYSIGAISQLDLNRLQKIGAVGQS YIRNGEYAKGAEQLDLMTDDKFIEQIGNINVYNIRKYKGSDEYDYSWADF LNNYIKQFSSEITKFQRSNEKIYNAFQKDIGESRLKDIQLLLERQYKVLL LNGQLDYIINTPGAWNWIYQIDWKYKYQWKNAKKQFITSPIQGEENKVET HGYIKTFENFSYATIYKAGHMIPTDNPKAAYQVIENFIK
Current understanding of the population genetics of free-living unicellular eukaryotes is limited, and the amount of genetic variability in these organisms is still a matter of debate. We characterized-reproductively and genetically-worldwide samples of multiple Paramecium species belonging to a cryptic species complex, Paramecium aurelia, whose species have been shown to be reproductively isolated. We found that levels of genetic diversity both in the nucleus and in the mitochondrion are substantial within groups of reproductively compatible P. aurelia strains but drop considerably when strains are partitioned according to their phylogenetic groupings. Our study reveals the existence of discrepancies between the mating behavior of a number of P. aurelia strains and their multilocus genetic profile, a controversial finding that has major consequences for both the current methods of species assignment and the species problem in the P. aurelia complex.
