Karyotypes of parasitic wasps of the family Eulophidae (Hymenoptera) attacking leaf-mining Lepidoptera (Gracillariidae, Gelechiidae) [0.03%]
捕食叶透明虫(卷蛾科、尺蛾科)的赤眼蜂科寄生性黄蜂的染色体类型(半翅目)
Vladimir E Gokhman,Zoya A Yefremova,Ekaterina N Yegorenkova
Vladimir E Gokhman
Karyotypes of eleven parasitoid species of the family Eulophidae were examined, namely, Chrysocharis laomedon (Walker, 1839) (2n = 10), Chrysocharis sp. aff. laomedon (n = 5, 2n = 10), Chrysocharis sp. aff. albipes (Ashmead, 1904) (2n = 12)...
New karyologycal data and cytotaxonomic considerations on small mammals from Santa Virgínia (Parque Estadual da Serra do Mar, Atlantic Forest, Brazil) [0.03%]
来自圣塔维吉尼亚(巴西大西洋森林州立公园森德拉马尔山)的小哺乳动物的新染色体学数据及细胞分类学考量
Camilla Bruno Di-Nizo,Carolina Lima Neves,Júlio Fernando Vilela et al.
Camilla Bruno Di-Nizo et al.
Atlantic Forest, in the eastern coast of Brazil, is a hotspot of biodiversity of mammals, and Parque Estadual da Serra do Mar (PESM) is the largest continuous area of this biome. Here, we characterized the karyotype composition of the small...
Chromatin diminution in Copepoda (Crustacea): pattern, biological role and evolutionary aspects [0.03%]
copepoda(甲壳动物)染色质减少:模式、生物学作用和进化方面
Andrey Grishanin
Andrey Grishanin
This article provides an overview of research on chromatin diminution (CD) in copepods. The phenomenology, mechanisms and biological role of CD are discussed. A model of CD as an alternative means of regulating cell differentiation is prese...
Karyotypes, B-chromosomes and meiotic abnormalities in 13 populations of Alebra albostriella and A. wahlbergi (Hemiptera, Auchenorrhyncha, Cicadellidae) from Greece [0.03%]
来自希腊的13个Alebra albostriella和A. wahlbergi群体的染色体核型、B-染色体及减数分裂异常现象研究(半翅目,垫网亚目,叶蝉科)
Valentina G Kuznetsova,Natalia V Golub,Dora Aguin-Pombo
Valentina G Kuznetsova
In this work 13 populations of the leafhopper species Alebra albostriella (Fallén, 1826) (6 populations) and A. wahlbergi (Boheman, 1845) (7 populations) (Cicadellidae: Typhlocybinae) from Greece were studied cytogenetically. We examined c...
Karyotypic similarities between two species of Rhamphichthys (Rhamphichthyidae, Gymnotiformes) from the Amazon basin [0.03%]
亚马逊流域两种裸胸鳝属鱼类的核型相似性(电鳗科)
Patrícia Corrêa da Silva,Cleusa Yoshiko Nagamachi,Danillo Dos Santos Silva et al.
Patrícia Corrêa da Silva et al.
The family Rhamphichthyidae includes three genera: Rhamphichthys Müller et Troschel, 1846, Gymnorhamphichthys M. M. Ellis, 1912 and Iracema Triques, 1996. From this family, only the species Rhamphichthys hanni Meinken, 1937 has had its kar...
Cytological investigations and new chromosome number reports in yarrow (Achillea millefolium Linnaeus, 1753) accessions from Iran [0.03%]
伊朗鸦葱种质资源的细胞学研究及染色体数目报道
Fatemeh Afshari,Mohsen Ebrahimi,Mohammad Akbari et al.
Fatemeh Afshari et al.
In this study, a new chromosome number for Iranian yarrow (Achillea millefolium L.) accessions was reported. Cytological analyses on four Achillea millefolium accessions, indicated that two accessions were diploids (2n=2x=18) and two tetrap...
Extensive fragmentation of the X chromosome in the bed bug Cimex lectularius Linnaeus, 1758 (Heteroptera, Cimicidae): a survey across Europe [0.03%]
家床虱(Cimex lectularius)的X染色体在欧洲范围内的广泛片段化:异翅亚目、臭虫科
David Sadílek,František Sťáhlavský,Jitka Vilímová et al.
David Sadílek et al.
Variation in the number of chromosomes was revealed in 61 samples of Cimex lectularius Linnaeus, 1758 from the Czech Republic and other European countries, hosted on Myotis Kaup, 1829 (4) and Homo sapiens Linnaeus, 1758 (57). The karyotype ...
Meiosis in rare males in parthenogenetic Cacopsylla myrtilli (Wagner, 1947) (Hemiptera, Psyllidae) populations from northern Europe [0.03%]
北欧部分地区无性繁殖的Cacopsylla myrtilli(Wagner, 1947)(半翅目蚜亚科)罕见雄性的减数分裂现象研究
Christina Nokkala,Valentina G Kuznetsova,Seppo Nokkala
Christina Nokkala
For studying meiosis in males, large samples of Cacopsylla myrtilli (Wagner, 1947) (Hemiptera, Psyllidae) were collected in Norway, Sweden, Finland and northwest Russia. In addition to all-female populations, males were present in 10 out of...
A chromosomal investigation of four species of Chinese Panorpidae (Insecta, Mecoptera) [0.03%]
四种中国笔石目(Panorpidae)物种的染色体调查研究(Insecta, Mecoptera)
Bo Xu,Yankai Li,Baozhen Hua
Bo Xu
The male adults of four species of the Chinese Panorpidae in Mecoptera were cytogenetically studied using conventional squashing procedures. The results show that their sex-chromosome system belongs to the XO type, with n = 19 + X(O) in Pan...
Karyological evidence for diversification of Italian slow worm populations (Squamata, Anguidae) [0.03%]
意大利慢worm种群分化(Karyological evidence for diversification of Italian slow worm populations)
Marcello Mezzasalma,Fabio Maria Guarino,Gennaro Aprea et al.
Marcello Mezzasalma et al.
A karyological analysis on six Italian populations the slow worm (Anguis veronensis Pollini, 1818) was performed and their genetic differentiation at the mitochondrial 16S rRNA gene fragment from a Spanish sample has been assessed. The Ital...