A comparative morphological study of several species of Euplotes closely related to Euplotes patella

Sex in Ciliates

“…Notwithstanding a certain amount of intersibling species variation within each nominal species, shifts of genetic "life-style" among these forms could render anything but fortuitous such a dissimilar evolutionary behavior. No.of sibling system Sonneborn (1957) See text Katashima (1959) Kimball (1942, Pierson (1943), Katashima (1961) Kosaka (1982 Cho (1971) Kay (1946), Siegel (1956) See text Jennings (1939b), Chen (1946), Bomford (1966) Nakata (1958, Wichterman (1951), Sonneborn (1970) Gilman (1939, 1950, Hiwatashi (1949), Sonneborn (1970), Khadem andGibson (1985) Sonneborn (1958), Przyboz (1975) Giese and Arkoosh (1939), Sonneborn (1958) Hayashi and Takayanagi (1962) Jankowski (1962, Ammermann (1966), Sonneborn (1970) Ammermann (1966) Takahashi (1973 See text Rao (1958) Downs (1959 See text Vaudaux et al (1977), Williams et al (1984), Simon et al (1985) Reiff (1968) aB, binary mating-type system (with two types); M, mUltiple (with more than two types but finite in number; closed system); H-M, high-multiple (with many types virtually infinite in number; open system). bAfter the taxonomic revision of Schlegel et al...…”

Morphological, Physiological, and Molecular Evidences Suggest that Euplotes parawoodruffi is a Junior Synonym of Euplotes woodruffi (Ciliophora, Euplotida)

“…Dragesco and Dragesco‐Kernés ; Fokin et al. ; Hill and Reilly ; Pierson ; Song and Bradbury ). Based on the detailed description of a North American brackish isolate and a Chinese freshwater isolate of E .…”

“…Euplotes woodruffi is another example that can thrive in both freshwater and brackish habitats. Pierson () collected two brackish isolates of E . woodruffi, respectively, from Savin Rock, near New Haven, Connecticut and Back River, near Baltimore, Maryland, USA, at salinity of 2.3‰, and successfully acclimatized the two brackish isolates to fresh water.…”

“…The species has been repeatedly found in freshwater and brackish biotopes in Asia, Europe, North America, and Africa (e.g. Dragesco and Dragesco-Kerné s 1986;Fokin et al 2008;Hill and Reilly 1976;Pierson 1943;Song and Bradbury 1997). Based on the The morphological differences of the American brackish isolate are striking when compared with those of the Chinese freshwater isolate, in body shape, pre-oral pouch, AZM, macronucleus arm length, ciliature, and silverline system.…”

Morphology, ontogeny and molecular phylogeny of Euplotes aediculatus Pierson, 1943 (Ciliophora, Euplotida)

“…纤毛虫原生动物为单细胞真核生物, 种类繁多, 其自由生活的类群广泛分布于海洋、淡水和土壤等 各种生境, 甚至在苔原、极地和高盐等极端生境中 也有发现, 还有一些类群营寄生或共栖生活 Qu et al, 2015;Dong et al, 2016;Li et al, 2016)。纤毛虫高度分化的细胞器、分司不同功能的 两型核结构以及特有的有性生殖方式(接合生殖), 使其作为重要的模式生物在细胞生物学、遗传学、 生态学以及真核生物的起源和进化等领域具有重 要的研究价值 (Corliss, 1979;Lynn, 2008;宋微波等, 2009)。 游仆类是纤毛虫中进化最为复杂和高等的一 大类群, 其多样性、发生学及系统学一直是国内外 研究的热点 (Carter, 1972;Curds, 1975;Shao et al, 2010;Yi et al, 2012)。经典的系统分类中, 游仆类隶 属于纤毛虫中的腹毛类 (Kahl, 1932;Borror, 1972;Corliss, 1979;Borror & Hill, 1995) (5-AAC CTG GTT GAT CCT GCC AGT-3)和18s-R (5-TGA TCC TTC TGC AGG TTC ACC TAC-3) (Medlin et al, 1988)。PCR扩增后, 产物直接送测序 公司测序 (Yi et al, 2009)。 额腹棘毛数目 Number of frontoventral cirri 9 9 9 9.0 0 0 19 (Pierson, 1943;Tuffrau, 1960;Pierson et al, 1968;Carter, 1972 虫为名的种群, 实际均为小腔游仆虫 (Pierson et al, 1968;Curds, 1975;庞延斌和魏红兵, 1999 Tuffrau, 1960;Carter, 1972;Curds, 1975 来源于独立发生的原基; 左缘棘毛原基独立发生等 (Washburn & Borror, 1972;Ruffolo, 1976;Shao et al, 2010;Fotedar et al, 2016 …”