系群 meaning in English
system group
Examples
- Four monophyletic groups have traditionally been united as myriapoda , namely chilopoda , pauropoda , diplopoda and symphyla . the relationships of myriapods are central to most questions in higher - level arthropod phylogeny
现生的多足动物主要由唇足纲、综合纲、少足纲和倍足纲四个单系群组成。 - But there is ambiguously taxonomic position between chaitophoridae and aphidinae . the genetic distance of aphididae and macrosiphinae in aphididae is more diverged than that of between chaitophoridae and aphididae . the 600bp - 1700bp region of issrdna gene maybe unsuitable to aphididae , it includes a helix e21
1数据分析软件中构建的upgma 、 nj 、 me和mp分子系统树一致支持群蚜科和毛管蚜科形成一单系群，这二者相聚后与刺蚜亚科互为姐妹群。 - The phylogenetic trees promulgate that : ( a ) est traits significantly differ between different generic taxa and between different species in the same genus , ( b ) similarity degree of est traits between different taxa is not correlative to that of morphological characters . some morphological taxa in traditional classification are not monophyletic group , ( c ) relationship among subfamilies based on est characters is somewhat compatible to intrafamily phylogeny proposed by schuh ( 1976 ) , but it is clear that orthotylinae and phylinae are not directly sister grouped
分析结果表明( 1 )酯酶同工酶酶谱特征在不同属级单元之间以及同属的不同种类之间都存在着明显的差异： ( 2 )不同属种之间酯酶同工酶特征的相似程度与外部形态特征之间的相似程度不一致性，以外部形态为主要依据的传统分类的一些属不是真正的单系群。 - Cytochrome b gene compared with characiforms , cypriniforms and salmoniforms ; ( 2 ) the molecular phylogenetic trees suggest that siluriforms form a monophyletic group and have a close relationship with characiforms ; ( 3 ) the families of pangasiidae , claroteidae , ictaluridae , cranoglanididae , schilbidae and clariidae form a monophyletic group in the three molecular phylogenetic trees . the family bagridae branched with schilbidae which comes from china ; the family akysidae branched with amblycipitidae , but the phylogenetic positions of the families siluridae , sisoridae and pimelodidae are not recognised
鱼芒科、棘脂?科、叉尾?科、长臀?科、刀鲇科与胡子鲇科在三种方法构建的分子系统树中均结合在一起，形成一大单系群； ?科均与来自中国的刀鲇科鱼类聚在一起；粒鲇科与钝头跪科也均聚在一起；但鲇科、 ?科和油鲇科的系统发育位置不定。 - The results suggest that 1 ) sannella dworakowska should be moved out from typhlocybini to zyginellini ; 2 ) eupteryx complex is a molophyletic group and should be placed in typhlocybini ; 3 ) farynala complex , eupteryx complex and linnavouriana complex were confirmed to be molophyletic respectively which is in accordance with the traditional views . before this study , 44 genera and 6 subgenera , 502species of typhlocybini are found over the world , of which 20 genera and 87 species are known in china
结果表明： 1 )圆顶小叶蝉属sannelladworakowska在严格合意树上位于树的根部而与小叶蝉族其它属的共同分支平行，不属于本族； 2 )蒿小叶蝉属组eupteryxcomplex为一单系群，属于小叶蝉族； 3 )传统分类所提出的除小叶蝉属组typhlocybacomplex以外的其他几个属组(蟠小叶蝉属组farynalacomplex 、蒿小叶蝉属组eupteryxcomplex和林氏小叶蝉属组linnavourianacomplex )为亚单系群的观点成立。