A NEW SPECIES OF RIPELLA SMIRNOV ET AL., 2007 (AMOEBOZOA, DISCOSEA) AND INTRAGENOMIC VARIATION OF THE SSU RRNA GENE WITHIN THIS GENUS

Anna Gladkikh, Alexander Kudryavtsev

Research output: Contribution to conferenceAbstract

Abstract

The genus Ripella comprises small members of the order Vannellida (Amoebozoa, Discosea). Their SSU rRNA gene has an unusually short sequence lacking several pieces in the hypervariable regions. Until now the genus has been containing only one named species, R. platypodia, but some previously published data on unnamed strains indicate that Ripella may be more diverse than considered previously. We confirm this by presenting a morphological, ultrastructural and molecular investigation of another new freshwater species of Ripella inhabiting the culture of Tribonema sp., and one more strain of R. platypodia isolated from a small slightly brackish lake in the Negev Desert (Israel). Being typical members of the genus Ripella, both strains have shown unusual features of their SSU rRNA gene also evident in the type strain CCAP 1589/2 of R. platypodia. Besides a small length, this gene demonstrated a significant level of intragenomic variability in several local areas located in all studied strains in the same sites o
Original languageUndefined
Pages115
StatePublished - 2015
Externally publishedYes
EventVII European Congress of Protistology - Sevilla, Spain
Duration: 4 Sep 20159 Sep 2015
http://eukref.org/event/vii-european-congress-of-protistology/

Conference

ConferenceVII European Congress of Protistology
CountrySpain
CitySevilla
Period4/09/159/09/15
Internet address

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