Comparative Cytogenetics最新文献

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More hidden diversity in a cryptic species complex: a new subspecies of Leptideasinapis (Lepidoptera, Pieridae) from Northern Iran. More隐种复合体中隐藏的多样性:来自伊朗北部的瘦翅目(鳞翅目,蝶科)的一个新亚种。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2023-01-01 DOI: 10.3897/compcytogen.17.102830
Vazrick Nazari, Vladimir A Lukhtanov, Alireza Naderi, Zdenek Faltýnek Fric, Vlad Dincă, Roger Vila
{"title":"More hidden diversity in a cryptic species complex: a new subspecies of <i>Leptideasinapis</i> (Lepidoptera, Pieridae) from Northern Iran.","authors":"Vazrick Nazari,&nbsp;Vladimir A Lukhtanov,&nbsp;Alireza Naderi,&nbsp;Zdenek Faltýnek Fric,&nbsp;Vlad Dincă,&nbsp;Roger Vila","doi":"10.3897/compcytogen.17.102830","DOIUrl":"https://doi.org/10.3897/compcytogen.17.102830","url":null,"abstract":"<p><p>A new subspecies of <i>Leptideasinapis</i> from Northern Iran, discovered by means of DNA barcoding, is described as <i>Leptideasinapistabarestana</i><b>ssp. nov.</b> The new subspecies is allopatric with respect to other populations of <i>L.sinapis</i> and is genetically distinct, appearing as a well-supported sister clade to all other populations in COI-based phylogenetic reconstructions. Details on karyotype, genitalia, ecology and behaviour for the new subspecies are given and a biogeographical speciation scenario is proposed.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252139/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9617619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Allium cytogenetics: a critical review on the Indian taxa. Allium细胞遗传学:对印度分类群的评述。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2023-01-01 DOI: 10.3897/CompCytogen.17.98903
Biplab Kumar Bhowmick, Sayantika Sarkar, Dipasree Roychowdhury, Sayali D Patil, Manoj M Lekhak, Deepak Ohri, Satyawada Rama Rao, S R Yadav, R C Verma, Manoj K Dhar, S N Raina, Sumita Jha
{"title":"<i>Allium</i> cytogenetics: a critical review on the Indian taxa.","authors":"Biplab Kumar Bhowmick,&nbsp;Sayantika Sarkar,&nbsp;Dipasree Roychowdhury,&nbsp;Sayali D Patil,&nbsp;Manoj M Lekhak,&nbsp;Deepak Ohri,&nbsp;Satyawada Rama Rao,&nbsp;S R Yadav,&nbsp;R C Verma,&nbsp;Manoj K Dhar,&nbsp;S N Raina,&nbsp;Sumita Jha","doi":"10.3897/CompCytogen.17.98903","DOIUrl":"https://doi.org/10.3897/CompCytogen.17.98903","url":null,"abstract":"<p><p>The genus <i>Allium</i> Linnaeus, 1753 (tribe Allieae) contains about 800 species worldwide of which almost 38 species are reported in India, including the globally important crops (onion, garlic, leek, shallot) and many wild species. A satisfactory chromosomal catalogue of <i>Allium</i> species is missing which has been considered in the review for the species occurring in India. The most prominent base number is x=8, with few records of x=7, 10, 11. The genome size has sufficient clues for divergence, ranging from 7.8 pg/1C to 30.0 pg/1C in diploid and 15.16 pg/1C to 41.78 pg/1C in polyploid species. Although the karyotypes are seemingly dominated by metacentrics, substantial variation in nucleolus organizing regions (NORs) is noteworthy. The chromosomal rearrangement between <i>A.cepa</i> Linnaeus, 1753 and its allied species has paved way to appreciate genomic evolution within <i>Allium</i>. The presence of a unique telomere sequence and its conservation in <i>Allium</i> sets this genus apart from all other Amaryllids and supports monophyletic origin. Any cytogenetic investigation regarding NOR variability, telomere sequence and genome size in the Indian species becomes the most promising field to decipher chromosome evolution against the background of species diversity and evolution, especially in the Indian subcontinent.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252142/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9617621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intraspecific divergence of diploid grass Aegilopscomosa is associated with structural chromosome changes. Intraspecific二倍体草的分化与结构染色体的改变有关。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2023-01-01 DOI: 10.3897/CompCytogen.17.101008
Ekaterina D Badaeva, Violetta V Kotseruba, Andnrey V Fisenko, Nadezhda N Chikida, Maria Kh Belousova, Peter M Zhurbenko, Sergei A Surzhikov, Alexandra Yu Dragovich
{"title":"Intraspecific divergence of diploid grass <i>Aegilopscomosa</i> is associated with structural chromosome changes.","authors":"Ekaterina D Badaeva,&nbsp;Violetta V Kotseruba,&nbsp;Andnrey V Fisenko,&nbsp;Nadezhda N Chikida,&nbsp;Maria Kh Belousova,&nbsp;Peter M Zhurbenko,&nbsp;Sergei A Surzhikov,&nbsp;Alexandra Yu Dragovich","doi":"10.3897/CompCytogen.17.101008","DOIUrl":"https://doi.org/10.3897/CompCytogen.17.101008","url":null,"abstract":"<p><p><i>Aegilopscomosa</i> Smith in Sibthorp et Smith, 1806 is diploid grass with MM genome constitution occurring mainly in Greece. Two morphologically distinct subspecies - <i>Ae.c.comosa</i> Chennaveeraiah, 1960 and <i>Ae.c.heldreichii</i> (Holzmann ex Boissier) Eig, 1929 are discriminated within <i>Ae.comosa</i>, however, genetic and karyotypic bases of their divergence are not fully understood. We used Fluorescence in situ hybridization (FISH) with repetitive DNA probes and electrophoretic analysis of gliadins to characterize the genome and karyotype of <i>Ae.comosa</i> to assess the level of their genetic diversity and uncover mechanisms leading to radiation of subspecies. We show that two subspecies differ in size and morphology of chromosomes 3M and 6M, which can be due to reciprocal translocation. Subspecies also differ in the amount and distribution of microsatellite and satellite DNA sequences, the number and position of minor NORs, especially on 3M and 6M, and gliadin spectra mainly in the a-zone. Frequent occurrence of hybrids can be caused by open pollination, which, along with genetic heterogeneity of accessions and, probably, the lack of geographic or genetic barrier between the subspecies, may contribute to extremely broad intraspecific variation of GAA<sub>n</sub> and gliadin patterns in <i>Ae.comosa</i>, which are usually not observed in endemic plant species.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252141/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9620726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complete chloroplast genome sequence of Rhododendronmariesii and comparative genomics of related species in the family Ericaeae. Complete杜鹃科近缘种叶绿体基因组序列及比较基因组学研究。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2023-01-01 DOI: 10.3897/compcytogen.17.101427
Zhiliang Li, Zhiwei Huang, Xuchun Wan, Jiaojun Yu, Hongjin Dong, Jialiang Zhang, Chunyu Zhang, Shuzhen Wang
{"title":"Complete chloroplast genome sequence of <i>Rhododendronmariesii</i> and comparative genomics of related species in the family Ericaeae.","authors":"Zhiliang Li,&nbsp;Zhiwei Huang,&nbsp;Xuchun Wan,&nbsp;Jiaojun Yu,&nbsp;Hongjin Dong,&nbsp;Jialiang Zhang,&nbsp;Chunyu Zhang,&nbsp;Shuzhen Wang","doi":"10.3897/compcytogen.17.101427","DOIUrl":"https://doi.org/10.3897/compcytogen.17.101427","url":null,"abstract":"<p><p><i>Rhododendronmariesii</i> Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of <i>R.mariesii</i> was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the <i>R.mariesii</i>cp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as <i>trnK-pafI</i> and <i>atpE-rpoB</i>, which could serve as potential markers for future barcoding and phylogenetic research of <i>R.mariesii</i> species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in <i>R.mariesii</i> and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that <i>R.mariesii</i> was relatively closed to the <i>R.simsii</i> Planchon, 1853 and <i>R.pulchrum</i> Sweet,1831. This research will supply rich genetic resource for <i>R.mariesii</i> and related species of the Ericaeae.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10464601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10482830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First karyotype description of the species of Adenomera Steindachner, 1867 (Anura, Leptodactylidae) in the " thomei" clade. 首次对 "thomei "支系中的 Adenomera Steindachner, 1867 (Anura, Leptodactylidae) 物种进行核型描述。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-08-30 eCollection Date: 2022-01-01 DOI: 10.3897/compcytogen.v16.i3.82641
Ramon Costa Dominato, Guilherme Costa de Oliveira, Carla Santana Cassini, Victor Goyannes Dill Orrico, Cléa Dos Santos Ferreira Mariano, Janisete Gomes Silva
{"title":"First karyotype description of the species of <i>Adenomera</i> Steindachner, 1867 (Anura, Leptodactylidae) in the \" <i>thomei</i>\" clade.","authors":"Ramon Costa Dominato, Guilherme Costa de Oliveira, Carla Santana Cassini, Victor Goyannes Dill Orrico, Cléa Dos Santos Ferreira Mariano, Janisete Gomes Silva","doi":"10.3897/compcytogen.v16.i3.82641","DOIUrl":"10.3897/compcytogen.v16.i3.82641","url":null,"abstract":"<p><p>The genus <i>Adenomera</i> Steindachner, 1867 currently comprises 29 nominal species, some of which are suggested to be cryptic species complexes. The present study was carried out with specimens of the \"<i>thomei</i>\" clade that encompasses three taxa distributed in the Atlantic Forest biome: <i>Adenomerathomei</i> Almeida et Angulo, 2006, <i>Adenomera</i> sp. L., and <i>Adenomera</i> sp. M. We used classical cytogenetics to describe the diploid number and karyomorphology of these three species collected in two different locations in the state of Bahia, Brazil. Our results revealed the diploid number 2n = 24 (FN = 34) with two pairs of metacentric chromosomes (pairs 1 and 5), three pairs of submetacentric chromosomes (pairs 2, 3, and 4), and seven pairs of telocentric chromosomes (pairs 6, 7, 8, 9, 10, 11, and 12). Further morphological, bioacoustic, and cytogenetic data (C-banding and AgNor) are needed to better delineate the lineages within the \"<i>thomei</i>\" clade.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849051/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10689447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cytotaxonomic investigations on species of genus Narcissus (Amaryllidaceae) from Algeria 阿尔及利亚水仙属(石蒜科)植物的细胞分类学研究
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-04-05 DOI: 10.3897/compcytogen.v16.i1.78852
Naila Chahinez Boukhebache, N. Amirouche, R. Amirouche
{"title":"Cytotaxonomic investigations on species of genus Narcissus (Amaryllidaceae) from Algeria","authors":"Naila Chahinez Boukhebache, N. Amirouche, R. Amirouche","doi":"10.3897/compcytogen.v16.i1.78852","DOIUrl":"https://doi.org/10.3897/compcytogen.v16.i1.78852","url":null,"abstract":"Abstract This paper provides new cytotaxonomic data on the genus Narcissus Linnaeus, 1753, in Algeria. Populations of seven taxa, N.tazetta Linnaeus, 1753, N.pachybolbus Durieu, 1847, N.papyraceus Ker Gawler, 1806, N.elegans (Haworth) Spach, 1846, N.serotinus sensu lato Linnaeus, 1753, including N.obsoletus (Haworth) Steudel, 1841, and N.cantabricus De Candolle, 1815, were karyologically investigated through chromosome counting and karyotype parameters. N.tazetta and N.elegans have the same number of chromosomes 2n = 2x = 20 with different karyotype formulas. Karyological and morphological characteristics, confirm the specific status of N.pachybolbus and N.papyraceus, both are diploids with 2n = 22 but differing in asymmetry indices. The morphotypes corresponding to N.serotinus sensu lato show two ploidy levels 2n = 4x = 20 and 2n = 6x = 30 characterized by a yellow corona. Some hexaploid cytotypes have more asymmetric karyotype with predominance of subtelocentric chromosomes. They are distinguished by orange corona and may correspond to N.obsoletus. Other cytotype 2n = 28 of N.serotinus was observed in the North Western biogeographic sectors. N.cantabricus was found to be diploid with 2n = 2x = 14, which is a new diploid report in the southernmost geographic range of this polyploid complex.","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41427520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Karyotypic analysis and isolation of four DNA markers of the scleractinian coral Favitespentagona (Esper, 1795) (Scleractinia, Anthozoa, Cnidaria) Karyotypic核虫目珊瑚Favitespentagona (Esper, 1795)(核虫目,珊瑚虫目,刺胞目)4个DNA标记的分析与分离
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-04-05 DOI: 10.3897/compcytogen.v16.i1.79953
R. Kawakami, T. Taguchi, J. Vacarizas, M. Ito, T. Mezaki, Akira Tominaga, S. Kubota
{"title":"Karyotypic analysis and isolation of four DNA markers of the scleractinian coral Favitespentagona (Esper, 1795) (Scleractinia, Anthozoa, Cnidaria)","authors":"R. Kawakami, T. Taguchi, J. Vacarizas, M. Ito, T. Mezaki, Akira Tominaga, S. Kubota","doi":"10.3897/compcytogen.v16.i1.79953","DOIUrl":"https://doi.org/10.3897/compcytogen.v16.i1.79953","url":null,"abstract":"Abstract We performed conventional and molecular cytogenetic studies on the Favitespentagona Esper, 1795, a scleractinian coral mostly found along the west coast of Japan. Karyotype analysis of F.pentagona by G-banding revealed a karyogram containing a homogenously staining region (HSR) on chromosome 10 in more than 50% of the examined metaphase spreads. This HSR consisted of sequences from 18S ribosomal RNA (rRNA) genes, as demonstrated by fluorescence in situ hybridization (FISH) and DNA sequencing. We highlighted the development of four chromosomal FISH markers from repetitive genes such as U2 small nuclear RNA linked to 5S rRNA sequence (U2 snRNA-5S), 18S rRNA, histone H3, and uncharacterized gene FP-9X. The chromosomal locations of the U2 snRNA-5S and 18S RNA were on the terminal end of long arm of chromosomes 2 and 10, respectively, while the histone H3 and the uncharacterized gene were located near the centromeres of chromosomes 1 and 9, respectively. These FISH markers will improve the karyotyping of F.pentagona from mitotic preparations which helps in widening our understanding of coral genetic structure and chromosome organization. In addition, these improvements in karyotyping will provide the basis in constructing of chromosome-level genome assembly for F.pentagona.","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48148394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Distribution patterns of rDNA loci in the Schedonorus-Lolium complex (Poaceae) 党参复合体(禾本科)rDNA基因座的分布模式
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-03-24 DOI: 10.3897/compcytogen.v16.i1.79056
H. Ansari, N. Ellison, A. Stewart, Warren Mervyn Williams
{"title":"Distribution patterns of rDNA loci in the Schedonorus-Lolium complex (Poaceae)","authors":"H. Ansari, N. Ellison, A. Stewart, Warren Mervyn Williams","doi":"10.3897/compcytogen.v16.i1.79056","DOIUrl":"https://doi.org/10.3897/compcytogen.v16.i1.79056","url":null,"abstract":"Abstract The Schedonorus-Lolium complex of the subtribe Loliinae (Poaceae) includes several economically important forage and turf grasses. This complex encompasses Lolium Linnaeus, 1753, Festuca Linnaeus, 1753 subgenus Schedonorus (P. Beauvois, 1824) Petermann, 1849 and Micropyropsis Romero Zarco et Cabezudo, 1983. New FISH results of 5S and 18S–26S rDNA sequences are presented for three species and the results are interpreted in a review of distribution patterns of 5S and 18S–26S rDNA sequences among other species in the complex. Micropyropsistuberosa Romero Zarco et Cabezudo, 1983 (2n = 2x = 14) displayed a distribution pattern of rDNA sequences identical to that of F.pratensis Hudson, 1762, supporting a close phylogenetic relationship at the bottom of the phylogenetic tree. “Loliummultiflorum” Lamarck, 1779 accessions sourced from Morocco showed a different pattern from European L.multiflorum and could be a unique and previously uncharacterised taxon. North African Festucasimensis Hochstetter ex A. Richard, 1851 had a marker pattern consistent with allotetraploidy and uniparental loss of one 18S–26S rDNA locus. This allotetraploid has previously been suggested to have originated from a hybrid with Festucaglaucescens (Festucaarundinaceavar.glaucescens Boissier, 1844). However, the distribution patterns of the two rDNA sequences in this allotetraploid do not align with F.glaucescens, suggesting that its origin from this species is unlikely. Furthermore, comparisons with other higher alloploids in the complex indicate that F.simensis was a potential donor of two sub-genomes of allohexaploid Festucagigantea (Linnaeus) Villars, 1787. In the overall complex, the proximal locations of both rDNA markers were conserved among the diploid species. Two types of synteny of the two markers could, to a considerable extent, distinguish allo- and autogamous Lolium species. The ancestral parentage of the three Festuca allotetraploids has not yet been determined, but all three appear to have been sub-genome donors to the higher allopolypoids of sub-genus Schedonorus. Terminal locations of both the markers were absent from the diploids but were very frequently observed in the polyploids.","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43639719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Karyotype characteristics and gene COI sequences of Chironomusbonus Shilova et Dzhvarsheishvili, 1974 (Diptera, Chironomidae) from the South Caucasus (Republic of Georgia, Paravani river) 南高加索(格鲁吉亚共和国,帕拉瓦尼河)Chironomusbonus Shilova et Dzhvarsheishvili, 1974(双翅目,Chironomusbonus et Dzhvarsheishvili)的特征和基因COI序列
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-03-01 DOI: 10.3897/CompCytogen.v16.i1.79182
M. K. Karmokov
{"title":"Karyotype characteristics and gene COI sequences of Chironomusbonus Shilova et Dzhvarsheishvili, 1974 (Diptera, Chironomidae) from the South Caucasus (Republic of Georgia, Paravani river)","authors":"M. K. Karmokov","doi":"10.3897/CompCytogen.v16.i1.79182","DOIUrl":"https://doi.org/10.3897/CompCytogen.v16.i1.79182","url":null,"abstract":"Abstract","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47371354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Comparative cytogenetics on eight Malagasy Mantellinae (Anura, Mantellidae) and a synthesis of the karyological data on the subfamily. Comparative 8个马达加斯加Mantellinae(无尾目,Mantellidae)的细胞遗传学及亚科核学资料的综合。
IF 1 4区 生物学
Comparative Cytogenetics Pub Date : 2022-02-11 eCollection Date: 2022-01-01 DOI: 10.3897/compcytogen.v16.i1.76260
Marcello Mezzasalma, Franco Andreone, Gaetano Odierna, Fabio Maria Guarino, Angelica Crottini
{"title":"Comparative cytogenetics on eight Malagasy Mantellinae (Anura, Mantellidae) and a synthesis of the karyological data on the subfamily.","authors":"Marcello Mezzasalma,&nbsp;Franco Andreone,&nbsp;Gaetano Odierna,&nbsp;Fabio Maria Guarino,&nbsp;Angelica Crottini","doi":"10.3897/compcytogen.v16.i1.76260","DOIUrl":"10.3897/compcytogen.v16.i1.76260","url":null,"abstract":"<p><p>We performed a molecular and cytogenetic analysis on different Mantellinae species and revised the available chromosomal data on this group to provide an updated assessment of its karyological diversity and evolution. Using a fragment of the mitochondrial 16S rRNA, we performed a molecular taxonomic identification of the samples that were used for cytogenetic analyses. A comparative cytogenetic analysis, with Giemsa's staining, Ag-NOR staining and sequential C-banding + Giemsa + CMA + DAPI was performed on eight species: <i>Gephyromantis</i> sp. Ca19, <i>G.striatus</i> (Vences, Glaw, Andreone, Jesu et Schimmenti, 2002), Mantidactylus (Chonomantis) sp. Ca11, M. (Brygoomantis) alutus (Peracca, 1893), M. (Hylobatrachus) cowanii (Boulenger, 1882), Spinomantispropeaglavei \"North\" (Methuen et Hewitt, 1913), <i>S.phantasticus</i> (Glaw et Vences, 1997) and <i>S.</i> sp. Ca3. <i>Gephyromantisstriatus</i>, M. (Brygoomantis) alutus and Spinomantispropeaglavei \"North\" have a karyotype of 2n = 24 chromosomes while the other species show 2n = 26 chromosomes. Among the analysed species we detected differences in the number and position of telocentric elements, location of NOR loci (alternatively on the 6<sup>th</sup>, 7<sup>th</sup> or 10<sup>th</sup> pair) and in the distribution of heterochromatin, which shows species-specific patterns. Merging our data with those previously available, we propose a karyotype of 2n = 26 with all biarmed elements and loci of NORs on the 6<sup>th</sup> chromosome pair as the ancestral state in the whole family Mantellidae. From this putative ancestral condition, a reduction of chromosome number through similar tandem fusions (from 2n = 26 to 2n = 24) occurred independently in Mantidactylus Boulenger, 1895 (subgenus Brygoomantis Dubois, 1992), <i>Spinomantis</i> Dubois, 1992 and <i>Gephyromantis</i> Methuen, 1920. Similarly, a relocation of NORs, from the putative primitive configuration on the 6<sup>th</sup> chromosome, occurred independently in <i>Gephyromantis</i>, <i>Blommersia</i> Dubois, 1992, <i>Guibemantis</i> Dubois, 1992, <i>Mantella</i> Boulenger, 1882 and <i>Spinomantis</i>. Chromosome inversions of primitive biarmed elements likely generated a variable number of telocentric elements in <i>Mantellanigricans</i> Guibé, 1978 and a different number of taxa of <i>Gephyromantis</i> (subgenera <i>Duboimantis</i> Glaw et Vences, 2006 and <i>Laurentomantis</i> Dubois, 1980) and <i>Mantidactylus</i> (subgenera <i>Brygoomantis</i>, <i>Chonomantis</i> Glaw et Vences, 1994, <i>Hylobatrachus</i> Laurent, 1943 and <i>Ochthomantis</i> Glaw et Vences, 1994).</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8857137/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39670842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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