林业研究（英文版）
林業研究（英文版）
임업연구（영문판）
JOURNAL OF FORESTRY RESEARCH
2008年
2期
119-124
,共6页
包囊游仆虫(Euplotes encysticus)%系统进化%红色伪角毛虫(Pseudokeronopsis rubra)%SSrRNA基因%贻贝棘尾虫(Stylonychia mytilus)%大尾柱虫(Urostyla grandis)
包囊遊僕蟲(Euplotes encysticus)%繫統進化%紅色偽角毛蟲(Pseudokeronopsis rubra)%SSrRNA基因%貽貝棘尾蟲(Stylonychia mytilus)%大尾柱蟲(Urostyla grandis)
포낭유부충(Euplotes encysticus)%계통진화%홍색위각모충(Pseudokeronopsis rubra)%SSrRNA기인%이패극미충(Stylonychia mytilus)%대미주충(Urostyla grandis)
Euplotes encysticus%phylogenetic relationship%Pseudokeronopsis rubra%SS rRNA gene%Stylonychia mytilus%Urostyla grandis
以四个在环境监测中比较有代表性的纤毛虫属－游仆虫属、尾柱虫属、棘尾虫属和伪角毛虫属纤毛虫(Euplotes, Urostyla, Stylonychia, Pseudokeronopsis)为材料,对其16s小亚基核糖体RNA(16s－like Small Subunit rRNA,SSrRNA)基因进行序列测定,并与其他种腹毛目纤毛虫相比较,以美国赭虫(Blepharisma americanum)为外群构建系统进化树.结果显示:游仆虫属最先从腹毛目纤毛虫中分化出来,尾柱虫属(Urostyla)与全列虫属(Holosticha)纤毛虫亲缘关系较近.贻贝棘尾虫(Stylonychia mytilus)和浮萍棘尾虫(Stylonychia lenmae)是姊妹种,在外观上及其相似,但可以用构建进化树的方法从分子角度加以区分.从构建的进化树拓扑结构上可知,红色伪角毛虫与全列虫科种类的亲缘关系较近,与尾柱虫科种类的亲缘关系较远.
以四箇在環境鑑測中比較有代錶性的纖毛蟲屬－遊僕蟲屬、尾柱蟲屬、棘尾蟲屬和偽角毛蟲屬纖毛蟲(Euplotes, Urostyla, Stylonychia, Pseudokeronopsis)為材料,對其16s小亞基覈糖體RNA(16s－like Small Subunit rRNA,SSrRNA)基因進行序列測定,併與其他種腹毛目纖毛蟲相比較,以美國赭蟲(Blepharisma americanum)為外群構建繫統進化樹.結果顯示:遊僕蟲屬最先從腹毛目纖毛蟲中分化齣來,尾柱蟲屬(Urostyla)與全列蟲屬(Holosticha)纖毛蟲親緣關繫較近.貽貝棘尾蟲(Stylonychia mytilus)和浮萍棘尾蟲(Stylonychia lenmae)是姊妹種,在外觀上及其相似,但可以用構建進化樹的方法從分子角度加以區分.從構建的進化樹拓撲結構上可知,紅色偽角毛蟲與全列蟲科種類的親緣關繫較近,與尾柱蟲科種類的親緣關繫較遠.
이사개재배경감측중비교유대표성적섬모충속－유부충속、미주충속、극미충속화위각모충속섬모충(Euplotes, Urostyla, Stylonychia, Pseudokeronopsis)위재료,대기16s소아기핵당체RNA(16s－like Small Subunit rRNA,SSrRNA)기인진행서렬측정,병여기타충복모목섬모충상비교,이미국자충(Blepharisma americanum)위외군구건계통진화수.결과현시:유부충속최선종복모목섬모충중분화출래,미주충속(Urostyla)여전렬충속(Holosticha)섬모충친연관계교근.이패극미충(Stylonychia mytilus)화부평극미충(Stylonychia lenmae)시자매충,재외관상급기상사,단가이용구건진화수적방법종분자각도가이구분.종구건적진화수탁복결구상가지,홍색위각모충여전렬충과충류적친연관계교근,여미주충과충류적친연관계교원.
The phylogenetic relationships of four ciliate genera (Urostyla, Euplotes, Stylonychia and Pseudokeronopsis), which also are the important environment inspection species, were analyzed by the comparison of small subunit ribosomal RNA gene sequences. Euplotes appeared as an early branching group whose divergence from the hypotrichous line at a deep level was strongly supported by parsimony and matrix analyses. The analyses also supported the hypothesis that there were closely relationship between species in Urostyla and Holosticha. The sibling species Stylonychia mytilus and S. lemnae could be separated by the evolutionary analyses. Furthermore, Pseudokeronopsis rubra had relatively more closely relationship with the species in Holostichidae than that in Urostylidae based on the evolutionary distance value.
