Sequences from the mitochondrial cytochrome b gene （Cyt b） were determined for 25 species from the superfamily Acridoidae and the homologous sequences of 19 species of grasshoppers were downloaded from the GenBank d...Sequences from the mitochondrial cytochrome b gene （Cyt b） were determined for 25 species from the superfamily Acridoidae and the homologous sequences of 19 species of grasshoppers were downloaded from the GenBank data library. The purpose was to develop a molecular phylogeny of the Acrypteridae, and to interpret the phylogenetic position of the family within the superfamily Acridoidea. Phylogeny was reconstructed by Maximum-parsimony （MP） and Bayesian criteria using Yunnanites coriacea and Tagasta marginella as outgroups. The alignment length of the fragments was 384 bp after excluding ambiguous sites, including 167 parsimony informative sites. In the fragments, the percentages of A ＋ T and G ＋ C were 70.7% and 29.3%, respectively. The monophyly of Arcypteridae is not supported by phylogenetic trees. Within the Arcypteridae, neither Arcypterinae nor Ceracrinae is supported as a monophyletic group. The current genus Chorthippus is not a monophyletic group, and should be a polyphyletic group. The present results are significantly different from the classification scheme of Arcypteridae, which is based on morphology.展开更多
运用光学显微镜、扫描电镜和透射电镜分别对中国角蝉总科18种昆虫(叶蝉17种,角蝉1种)的成虫"网粒体"进行了超微结构及合成部位研究。研究结果证实体表网粒体均合成于马氏管第三区(MT3)管壁细胞的高尔基体;这些网粒体可被分为...运用光学显微镜、扫描电镜和透射电镜分别对中国角蝉总科18种昆虫(叶蝉17种,角蝉1种)的成虫"网粒体"进行了超微结构及合成部位研究。研究结果证实体表网粒体均合成于马氏管第三区(MT3)管壁细胞的高尔基体;这些网粒体可被分为4种类型:小球形网粒体(SB)、棒状网粒体(RB)、多室大球形网粒体(LMB)及少室大球形网粒体(LFB)。其中,小球形网粒体(SB)最为普遍,广泛分布于研究所涉及的各个类群的体表;棒状网粒体(RB)和少室大球形网粒体(LFB)均仅发现于浅刻殃叶蝉Euscelis clistingueudus雄性体表,且数量相对较少,混杂分布于小球形网粒体(SB)之间;多室大球形网粒体(LMB)仅发现于圆冠叶蝉Athysanus sp.雌性前翅。另外,部分角蝉总科昆虫的体表还被有形态有异于网粒体的其他球形颗粒状物质及粘液状物质,但其来源、功能、与马氏管的相关性等有待进一步研究。此外,对马氏管的网粒体分泌功能在半翅目角蝉总科昆虫系统演化方面的意义进行了讨论,并认为Wyniger et al.提出的"能够产生网粒体的昆虫类群并不仅限于半翅目的叶蝉科,而应是整个半翅目"结论有待通过对更多半翅目类群昆虫的马氏管进行解剖研究才能证实。展开更多
A checklist of 280 species of the Chinese Mecoptera is presented,including 49 species in Bittacidae,228 species in Panorpidae,and three species in Panorpodidae.Four species,Bicaubittacus burmanus(Tjeder,1973),Bittacus...A checklist of 280 species of the Chinese Mecoptera is presented,including 49 species in Bittacidae,228 species in Panorpidae,and three species in Panorpodidae.Four species,Bicaubittacus burmanus(Tjeder,1973),Bittacus monastyrskiyi Bicha,2007,Neopanorpa cuspidata Byers,1965 and N.nielseni Byers,1965,are reported from China for the first time.Neopanorpa chaohsiufui nom.nov.is proposed for N.chaoi Zhou,2003,a junior homonym of N.chaoi Cheng,1957.In addition,we describe and illustrate the male of Panorpa guttata Navás,1908 for the first time in this paper.展开更多
基金This work was supported by National Natural Sciences Foundation of China (No. 30160015).
文摘Sequences from the mitochondrial cytochrome b gene （Cyt b） were determined for 25 species from the superfamily Acridoidae and the homologous sequences of 19 species of grasshoppers were downloaded from the GenBank data library. The purpose was to develop a molecular phylogeny of the Acrypteridae, and to interpret the phylogenetic position of the family within the superfamily Acridoidea. Phylogeny was reconstructed by Maximum-parsimony （MP） and Bayesian criteria using Yunnanites coriacea and Tagasta marginella as outgroups. The alignment length of the fragments was 384 bp after excluding ambiguous sites, including 167 parsimony informative sites. In the fragments, the percentages of A ＋ T and G ＋ C were 70.7% and 29.3%, respectively. The monophyly of Arcypteridae is not supported by phylogenetic trees. Within the Arcypteridae, neither Arcypterinae nor Ceracrinae is supported as a monophyletic group. The current genus Chorthippus is not a monophyletic group, and should be a polyphyletic group. The present results are significantly different from the classification scheme of Arcypteridae, which is based on morphology.
文摘运用光学显微镜、扫描电镜和透射电镜分别对中国角蝉总科18种昆虫(叶蝉17种,角蝉1种)的成虫"网粒体"进行了超微结构及合成部位研究。研究结果证实体表网粒体均合成于马氏管第三区(MT3)管壁细胞的高尔基体;这些网粒体可被分为4种类型:小球形网粒体(SB)、棒状网粒体(RB)、多室大球形网粒体(LMB)及少室大球形网粒体(LFB)。其中,小球形网粒体(SB)最为普遍,广泛分布于研究所涉及的各个类群的体表;棒状网粒体(RB)和少室大球形网粒体(LFB)均仅发现于浅刻殃叶蝉Euscelis clistingueudus雄性体表,且数量相对较少,混杂分布于小球形网粒体(SB)之间;多室大球形网粒体(LMB)仅发现于圆冠叶蝉Athysanus sp.雌性前翅。另外,部分角蝉总科昆虫的体表还被有形态有异于网粒体的其他球形颗粒状物质及粘液状物质,但其来源、功能、与马氏管的相关性等有待进一步研究。此外,对马氏管的网粒体分泌功能在半翅目角蝉总科昆虫系统演化方面的意义进行了讨论,并认为Wyniger et al.提出的"能够产生网粒体的昆虫类群并不仅限于半翅目的叶蝉科,而应是整个半翅目"结论有待通过对更多半翅目类群昆虫的马氏管进行解剖研究才能证实。
基金financially supported by the National Natural Science Foundation of China(31672341)
文摘A checklist of 280 species of the Chinese Mecoptera is presented,including 49 species in Bittacidae,228 species in Panorpidae,and three species in Panorpodidae.Four species,Bicaubittacus burmanus(Tjeder,1973),Bittacus monastyrskiyi Bicha,2007,Neopanorpa cuspidata Byers,1965 and N.nielseni Byers,1965,are reported from China for the first time.Neopanorpa chaohsiufui nom.nov.is proposed for N.chaoi Zhou,2003,a junior homonym of N.chaoi Cheng,1957.In addition,we describe and illustrate the male of Panorpa guttata Navás,1908 for the first time in this paper.
