Abstract:
:A lectotype is designated for the Tibetan species Deronectesemmerichi Falkenström, 1936 (Currently Boreonectesemmerichi (Falkenström)), and its habitus, as well as the median lobe and parameres of its aedeagus, are figured along with additional comparative material. Material of Boreonectesemmerichi from Sikkim (BMNH) represents the first record of a Boreonectes Angus, 2010 species from India. The karyotype of Boreonectesemmerichi is described as having 26 pairs of autosomes plus sex chromosomes which are X0 (♂), XX (♀). The karyotype is most like that of Boreonectesmacedonicus (Géuorguiev, 1959), but with slight differences. Additional chromosomal information is given for Boreonectesgriseostriatusgriseostriatus (De Geer, 1774) in the French Alps, Boreonectesgriseostriatusstrandi (Brinck, 1943) on the Kola Peninsula, Boreonectesmultilineatus (Falkenström, 1922) in the Pyrenees and Boreonectesibericus (Dutton & Angus, 2007) in the Spanish Picos de Europa.
journal_name
Comp Cytogenetjournal_title
Comparative cytogeneticsauthors
Angus RB,Angus EM,Jia F,Chen ZN,Zhang Ydoi
10.3897/CompCytogen.v9i1.4463subject
Has Abstractpub_date
2015-03-31 00:00:00pages
133-44issue
1eissn
1993-0771issn
1993-078Xjournal_volume
9pub_type
杂志文章abstract::Synaptonemal complex (SC) chains were revealed in semisterile intraspecific F1 hybrids of Ellobius tancrei Blasius, 1884 (2n = 49, NF=56 and 2n=50, NF=56), heterozygous for Robertsonian (Rb) translocations. Chains were formed by Rb submetacentrics with monobrachial homology. Chromosome synapsis in spermatocytes of the...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v9i4.5674
更新日期:2015-12-02 00:00:00
abstract::The genomes of five Agropyron Gaertner, 1770 species were characterized using all potential di- or trinucleotide simple sequence repeat (SSR) motifs and four satellite DNA repeats as fluorescence in situ hybridization (FISH) probes. The sites of 5S and 45S rDNA were relatively conserved among the diploid and tetraploi...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v11i3.13124
更新日期:2017-08-03 00:00:00
abstract::The species-rich and widespread genus Taraxacum F. H. Wiggers, 1780 (Asteraceae subfamily Cichorioideae) is one of the most taxonomically complex plant genera in the world, mainly due to its combination of different sexual and asexual reproduction strategies. Polyploidy is usually confined to apomictic microspecies, v...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v12i3.27307
更新日期:2018-09-18 00:00:00
abstract::Drosophila melanogaster Meigen, 1830 has served as a model insect for over a century. Sequencing of the 11 additional Drosophila Fallen, 1823 species marks substantial progress in comparative genomics of this genus. By comparison, practically nothing is known about the genome size or genome sequences of parasitic wasp...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v5i3.1435
更新日期:2011-08-24 00:00:00
abstract::[This corrects the article DOI: 10.3897/CompCytogen.v14i2.49513.]. ...
journal_title:Comparative cytogenetics
pub_type: 已发布勘误
doi:10.3897/CompCytogen.v14i4.56080
更新日期:2020-12-29 00:00:00
abstract::Plantago lagopus is a diploid (2n = 2x =12) weed belonging to family Plantaginaceae. We reported a novel B chromosome in this species composed of 5S and 45S ribosomal DNA and other repetitive elements. In the present work, presence of B chromosome(s) was confirmed through FISH on root tip and pollen mother cells. Seve...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.11i2.11779
更新日期:2017-05-22 00:00:00
abstract::Setaria Beauvois, 1812 is a genus of economically important forage species, including Setaria italica (Linnaeus, 1753) Beauvois, 1812 and Setaria viridis (Linnaeus, 1753) Beauvois, 1812, closely related species and considered as model systems for studies of C4 plants. However, complications and uncertainties related t...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v9i4.5456
更新日期:2015-10-07 00:00:00
abstract::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 presented. While the vast majority of eukaryotes inactivate genes that are no longer...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v8i1.5913
更新日期:2014-01-09 00:00:00
abstract::Phaneropterinae is the largest subfamily of Tettigoniidae, distributed across the globe. There are few cytogenetic studies regarding this group, as in the case of the genus group Aniarae, which represents only two karyotyped species. The current study aims to analyze cytogenetically three species of Hyperophora Brunne...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v13i1.31803
更新日期:2019-04-02 00:00:00
abstract::Ninety individuals of the characid fish Astyanax fasciatus (Cuvier, 1819) were collected at Água da Madalena stream (Botucatu, São Paulo, Brazil) and analyzed for diploid chromosome number 2n and karyotype composition as well as for the chromosomal location of the 5S and 18S ribosomal DNA (rDNA). Whereas no chromosome...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v6i1.2151
更新日期:2012-01-24 00:00:00
abstract::The subfamily Harpactorinae is composed of six tribes. Phylogenetic studies bring together some of Harpactorinae tribes, but by and large the data on evolutionary relationships of the subfamily are scarce. Chromosome studies are of great importance for understanding the systematics of different groups of insects. For ...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v10i4.10392
更新日期:2016-12-09 00:00:00
abstract::Peanut, Arachis hypogaea (Linnaeus, 1753) is an allotetraploid cultivated plant with two subgenomes derived from the hybridization between two diploid wild species, A. duranensis (Krapovickas & W. C. Gregory, 1994) and A. ipaensis (Krapovickas & W. C. Gregory, 1994), followed by spontaneous chromosomal duplication. To...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v12i1.20334
更新日期:2018-03-14 00:00:00
abstract::Previous cytogenetic analyses in Trypoxylon Latreille, 1796 have been basically restricted to C-banding. In the present study, base-specific CMA3 and DAPI fluorochrome staining were used to characterize the constitutive heterochromatin in three Trypoxylon species. The heterochromatin was GC-rich in all the species stu...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/compcytogen.v5i2.961
更新日期:2011-07-01 00:00:00
abstract::The ancient insect order Odonata is divided into three suborders: Anisoptera and Zygoptera with approximately 3000 species worldwide each, and Anisozygoptera with only four extant species in the relict family Epiophlebiidae. An updated list of Odonata species studied regarding chromosome number, sex chromosome mechani...
journal_title:Comparative cytogenetics
pub_type: 杂志文章,评审
doi:10.3897/CompCytogen.v14i4.57062
更新日期:2020-10-22 00:00:00
abstract::The elephantfish family Mormyridae is the most diverse lineage of the primitive teleostean clade Osteoglossomorpha distributed in inland waters of all continents except Antarctica and Europe. The family Mormyridae is endemic to Africa and includes 22 genera and almost 230 species. The evolutionary radiation of mormyri...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.14i3.52727
更新日期:2020-08-19 00:00:00
abstract::[This corrects the article DOI: 10.3897/CompCytogen.v11i1.10339.]. ...
journal_title:Comparative cytogenetics
pub_type: 杂志文章,已发布勘误
doi:10.3897/CompCytogen.v11i4.21560
更新日期:2017-12-08 00:00:00
abstract::Chromosome morphometry and nuclear DNA content are useful data for cytotaxonomy and for understanding the evolutionary history of different taxa. However, the chromosome number is the only karyotype aspect reported for the species of Dorstenia so far. In this study, the nuclear genome size of Dorstenia arifolia (Lamar...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v10i1.6719
更新日期:2016-01-22 00:00:00
abstract::The B chromosome in the hylid Hypsiboas albopunctatus (2n = 22 + B) is small, almost entirely composed of C-positive heterochromatin, and does not pair with any chromosome of the A complement. B probe, obtained by microdissection and DOP-PCR amplification, was used to search for homology between the B and regular chro...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v8i3.7771
更新日期:2014-08-08 00:00:00
abstract::Chromosome counts and karyotype characterization have proved to be important features of a genome. Chromosome changes during the diversification of ants might play an important role, given the diversity and success of Formicidae. Comparative karyotype analyses on ants have enriched and helped ant systematics. Among le...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v12i1.21799
更新日期:2018-01-09 00:00:00
abstract::We describe the karyotype, location of nucleolus-organizing regions (NORs) and heterochromatin composition and distribution in Lepidochitona caprearum (Scacchi, 1836). The examined specimens had 2n=24 chromosomes; the elements of pairs 1-4 were metacentric, subtelocentric those of the fifth pair, telocentric the eleme...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v6i4.3722
更新日期:2012-12-12 00:00:00
abstract::Valeriana jatamansi, a medicinally important species of the family Valerianaceae, has been cytologically studied in different geographical areas of North-Western Himalayan region of India. The tetraploid cytotype with chromosome numbers 2n=32 is in conformity with the earlier reports of the species from different part...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v9i4.8875
更新日期:2015-08-07 00:00:00
abstract::In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for Amaranthus hypochondriacus Linnaeus, 1753, Amaranthus mantegazzianus Passer, 1864, and Amaranthus caudatus Linnaeus, 1753. The distribution and variability of constitutive heterochromatin were ...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v7i1.4276
更新日期:2013-03-26 00:00:00
abstract::Parallel trends of chromosomal evolution in Aphidococca are discussed, based on the catalogue of chromosomal numbers and genetic systems of scale insects by Gavrilov (2007) and the new catalogue for aphids provided in the present paper. To date chromosome numbers have been reported for 482 species of scale insects and...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v9i3.4930
更新日期:2015-07-09 00:00:00
abstract::Stingless bees are distributed widely in the tropics, where they are major pollinators of several plant species. In this study, the karyotype of Meliponaquinquefasciata Lepeletier, 1836 was analysed, with emphasis on the presence of B chromosomes. Post-defecating larvae were analysed using Giemsa staining, the C-bandi...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v12i4.29165
更新日期:2018-11-09 00:00:00
abstract::In the present study, we analyzed individuals of Hypostomus soniae (Loricariidae) collected from the Teles Pires River, southern Amazon basin, Brazil. Hypostomus soniae has a diploid chromosome number of 2n = 64 and a karyotype composed of 12 metacentric (m), 22 submetacentric (sm), 14 subtelocentric (st), and 16 acro...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v13i4.36205
更新日期:2019-12-11 00:00:00
abstract::Brazilian fish cytogenetics started as early as the seventies in three pioneering research groups, located at the Universidade Estadual Paulista (UNESP, Botucatu, SP), Universidade Federal de São Carlos (UFSCar, São Carlos, SP) and Universidade de São Paulo (USP, São Paulo, SP). Investigations that have been conducted...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v11i4.14713
更新日期:2017-10-20 00:00:00
abstract::Chromosome morphometry and nuclear DNA content are useful data for cytotaxonomy and to understand the evolutionary history of different taxa. For the genus Bromus Linnaeus, 1753, distinct ploidy levels have been reported, occurring from diploid to duodecaploid species. The geographic distribution of Bromus species has...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v11i2.11572
更新日期:2017-04-07 00:00:00
abstract::The karyotypes and the localization of C-bands, clusters of ribosomal DNA and telomeric repeats of 10 species of the family Pamphagidae from Morocco are described for the first time. The species studied belong to the subfamilies Pamphaginae and Thrinchinae. All species have karyotypes consisting of 19 and 20 acrocentr...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v13i1.32039
更新日期:2019-02-27 00:00:00
abstract::The African chironomid Polypedilumvanderplanki Hinton, 1951 is the only chironomid able to withstand almost complete desiccation in an ametabolic state known as anhydrobiosis. The karyotypes of two allopatric populations of this anhydrobiotic chironomid, one from Nigeria and another from Malawi, were described accordi...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v9i2.9104
更新日期:2015-05-11 00:00:00
abstract::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 of all the specimens of Cimex lectularius analysed contained 26 autosomes and a...
journal_title:Comparative cytogenetics
pub_type: 杂志文章
doi:10.3897/CompCytogen.v7i4.6012
更新日期:2013-10-03 00:00:00