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Inference of evolution of vertebrate genomes and chromosomes from genomic and cytogenetic analyses using amphibians 从两栖动物的基因组和细胞遗传学分析推断脊椎动物基因组和染色体的进化
Chromosome science Pub Date : 2021-01-01 DOI: 10.11352/SCR.24.3
Y. Uno
{"title":"Inference of evolution of vertebrate genomes and chromosomes from genomic and cytogenetic analyses using amphibians","authors":"Y. Uno","doi":"10.11352/SCR.24.3","DOIUrl":"https://doi.org/10.11352/SCR.24.3","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72810391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Post-reductional meiosis in Chamaelirium subsect. Chionographis (Melanthiaceae) chamaelium亚组的还原后减数分裂。Chionographis (Melanthiaceae)
Chromosome science Pub Date : 2021-01-01 DOI: 10.11352/SCR.24.39
N. Tanaka
{"title":"Post-reductional meiosis in Chamaelirium subsect. Chionographis (Melanthiaceae)","authors":"N. Tanaka","doi":"10.11352/SCR.24.39","DOIUrl":"https://doi.org/10.11352/SCR.24.39","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87466681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluorescent chromosome banding in Chamaelirium hisauchianum (Melanthiaceae) with particular focus on the polycentricity 紫堇科紫堇的荧光染色体显带研究，重点关注其多中心性
Chromosome science Pub Date : 2021-01-01 DOI: 10.11352/SCR.24.21
N. Tanaka
{"title":"Fluorescent chromosome banding in Chamaelirium hisauchianum (Melanthiaceae) with particular focus on the polycentricity","authors":"N. Tanaka","doi":"10.11352/SCR.24.21","DOIUrl":"https://doi.org/10.11352/SCR.24.21","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76733270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A case of spontaneous translocation between two autosomes of Rumex acetosa 两常染色体间自发性易位一例
Chromosome science Pub Date : 2021-01-01 DOI: 10.11352/SCR.24.47
Y. Iwatsubo
{"title":"A case of spontaneous translocation between two autosomes of Rumex acetosa","authors":"Y. Iwatsubo","doi":"10.11352/SCR.24.47","DOIUrl":"https://doi.org/10.11352/SCR.24.47","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80890930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of meiotic abnormalities induced by gamma irradiations in Zea mays L. (Poaceae) γ辐射诱导玉米减数分裂异常的研究
Chromosome science Pub Date : 2018-01-01 DOI: 10.11352/SCR.21.75
Mushtaq Ahmad Khah, R. Verma, Rakesh Purbiya
{"title":"Assessment of meiotic abnormalities induced by gamma irradiations in Zea mays L. (Poaceae)","authors":"Mushtaq Ahmad Khah, R. Verma, Rakesh Purbiya","doi":"10.11352/SCR.21.75","DOIUrl":"https://doi.org/10.11352/SCR.21.75","url":null,"abstract":"Maize (Zea mays L.) is an important cereal crop with 2n = 20 chromosomes. For assessing irradiation effects, dry seeds of maize were treated with nine different irradiation doses viz., 5, 10, 15, 20, 25, 30, 35, 40 and 50kR at BARC, Mumbai. The gamma irradiated seed progenies displayed a wide spectrum of meiotic anomalies, the most being lagging chromosomes, chromosome stickiness, multivalents, unoriented bivalents, bridges and micronuclei. Other aberrations identified include chromosome scattering, univalents, disturbed polarity and precocious chromosome movement. The spectrum of these meiotic aberrations was found higher at metaphase than anaphase/telophase. Also, the frequency of aberrations showed positive correlation with the increasing gamma irradiation dose. In addition, gamma irradiation doses decreased germination and survival percentage as well. The irradiation doses ranging from 20-30kR were found beneficial in producing rapid cytogenetic variations and average lethality which could be beneficial in future cytological and mutation breeding programmes.","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89101626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cytogenetic variation among Cucumis accessions revealed by fluorescence in situ hybridization using ribosomal RNA genes as the probes 以核糖体RNA基因为探针，采用荧光原位杂交技术研究黄瓜材料间的细胞遗传变异
Chromosome science Pub Date : 2018-01-01 DOI: 10.11352/SCR.21.67
A. Setiawan, C. Teo, S. Kikuchi, H. Sassa, Kenji Kato, T. Koba
{"title":"Cytogenetic variation among Cucumis accessions revealed by fluorescence in situ hybridization using ribosomal RNA genes as the probes","authors":"A. Setiawan, C. Teo, S. Kikuchi, H. Sassa, Kenji Kato, T. Koba","doi":"10.11352/SCR.21.67","DOIUrl":"https://doi.org/10.11352/SCR.21.67","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89271875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Functional analysis of chromosomal proteins and cations on mitotic chromosome structure based on imaging techniques 基于成像技术的有丝分裂染色体结构中染色体蛋白和阳离子的功能分析
Chromosome science Pub Date : 2018-01-01 DOI: 10.11352/SCR.21.55
H. Takata
{"title":"Functional analysis of chromosomal proteins and cations on mitotic chromosome structure based on imaging techniques","authors":"H. Takata","doi":"10.11352/SCR.21.55","DOIUrl":"https://doi.org/10.11352/SCR.21.55","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88302020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new perception about cytomixis: Causes, mechanisms and role 对巨细胞增生的新认识:原因、机制和作用
Chromosome science Pub Date : 2018-01-01 DOI: 10.11352/SCR.21.61
V. Singhal, Rohit Kumar, Puneet Kumar
{"title":"A new perception about cytomixis: Causes, mechanisms and role","authors":"V. Singhal, Rohit Kumar, Puneet Kumar","doi":"10.11352/SCR.21.61","DOIUrl":"https://doi.org/10.11352/SCR.21.61","url":null,"abstract":"Till date, several classical and modern methodological tools had been employed to investigate the phenomenon of cytomixis for developing a clear understand-ing about its occurrence, causes, mechanism, and role in plant evolution. These attempts have succeeded to some extent in modifying general perception about it ever since its discovery. Based on the published literature as well as own work, the authors opined that cytomixis has no correlation with ploidy level/genomic status. Rather, it is the genetic makeup and environmental conditions which are responsible for cytomixis. We also assume that recipient meiocytes adjust to extra chromatin either through exclusion or condensation of chromatin. Other-wise, meiocytes depicted spindle abnormalities leading to gametes with the variable genetic constitution. Such gametes led to the origin of aneuploids/polyploids. High frequency of cytomixis during early stages has a direct correlation with the easier passage of genetic material. In some cases, whole nucleus migration resulted into syncytes which yielded unreduced pollen, leading to the origin of polyploids. Another evolutionary aspect of cytomixis is that it induces high pollen sterility in plants of cold deserts acquiring perennial habits and vegetative modes of propagation. We are of the opinion that like other cytological processes, cytomixis is a natural meiotic aberration of potential evolutionary significance.","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72625128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
First report of chromosome number and karyotype for Apios fortunei (Leguminosae) 豆科Apios fortunei染色体数目和核型首次报道
Chromosome science Pub Date : 2018-01-01 DOI: 10.11352/SCR.21.89
Kyoko Sato, T. Yamazaki, Y. Iwatsubo
{"title":"First report of chromosome number and karyotype for Apios fortunei (Leguminosae)","authors":"Kyoko Sato, T. Yamazaki, Y. Iwatsubo","doi":"10.11352/SCR.21.89","DOIUrl":"https://doi.org/10.11352/SCR.21.89","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73635320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chromosome translocation in a female with a history of fetal loss and chronic progressive multiple sclerosis 染色体易位的女性与胎儿丢失和慢性进行性多发性硬化症的历史
Chromosome science Pub Date : 2017-01-01 DOI: 10.11352/SCR.20.3
G. Livingston, J. Petajan, A. Balajee
{"title":"Chromosome translocation in a female with a history of fetal loss and chronic progressive multiple sclerosis","authors":"G. Livingston, J. Petajan, A. Balajee","doi":"10.11352/SCR.20.3","DOIUrl":"https://doi.org/10.11352/SCR.20.3","url":null,"abstract":"","PeriodicalId":10221,"journal":{"name":"Chromosome science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78021321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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