Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie最新文献_第6页

Modification of barley powdery mildew resistance gene Ml-a12 by induced mutation 大麦抗白粉病基因Ml-a12的诱变修饰

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-102

J. Torp, J. Jørgensen

引用次数: 75

A general method for identifying correct solutions in the quantitative analysis of gene conversion data. 在基因转换数据的定量分析中确定正确解的一般方法。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-100

B C Lamb

引用次数: 2

A chromosome marker for the early detection of mouse embryos carrying the neural tube defect mutation splotch. 早期检测携带神经管缺陷突变斑的小鼠胚胎的染色体标记。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-120

C M Kapron-Brás, M J Vekemans, D G Trasler

引用次数: 4

Analysis of induced homoeologous pairing in hybrids between 6x triticale ph1 mutant and Triticum aestivum L. 6 ×小黑麦ph1突变体与小麦杂种诱导同源配对分析。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-099

N. Jouve, B. Giorgi

引用次数: 14

Estimating the genic and chromosomal components of reproductive isolation within and between subspecies of the grasshopper Caledia captiva 估计Caledia captiva蝗虫亚种内和亚种间生殖隔离的基因和染色体成分

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-098

D. Shaw, D. Coates, P. Wilkinson

引用次数: 18

Genetic control of meiotic chromosome pairing in tetraploid Agropyron elongatum. I. Pattern of pairing in natural and induced tetraploids and in F1 triploid hybrids 四倍体长柄草减数分裂染色体配对的遗传控制。自然四倍体和诱导四倍体以及F1三倍体杂种的配对模式

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-110

A. Charpentier, M. Feldman, Y. Cauderon

引用次数: 21

Chromosome segregation from cell hybrids. II. Do differences in parental cell growth rates and phase times determine direction of loss? 杂种细胞的染色体分离。2亲代细胞生长速率和相时间的差异决定了损失的方向吗?

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-104

J A Graves, J M Wrigley

{"title":"Chromosome segregation from cell hybrids. II. Do differences in parental cell growth rates and phase times determine direction of loss?","authors":"J A Graves, J M Wrigley","doi":"10.1139/g86-104","DOIUrl":"https://doi.org/10.1139/g86-104","url":null,"abstract":"The hypothesis that the direction of chromosome segregation in cell hybrids is determined by the interaction of parent cell cycles, or S-phase times, predicts that the segregant parent will always be the one with the longer cycle, or the longer S phase, and that late replicating chromosomes will be more frequently lost. We have tested this hypothesis by studying cell cycle parameters of mouse, Chinese hamster, and platypus parent cells and by observing chromosome loss and replication patterns in hybrids between them. Two types of hybrids have been studied: mouse-hamster hybrids showed gradual segregation, in one or other direction, of 10-60% chromosomes, while rodent-platypus hybrids (which could be selected under conditions optimal for either parent cell) showed rapid and extreme segregation of platypus chromosomes. We found no correlation between the direction of segregation and the relative lengths of parental cycle times, or phase times, nor between sequence of replication and frequency with which segregant chromosomes are lost. We therefore conclude that the direction and extent of segregation is not directly determined by the interaction of parental cycle or phase times.","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"28 5","pages":"735-43"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1139/g86-104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14920772","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

Altered regulation of c-myc expression in adenovirus-transformed cells. 腺病毒转化细胞中c-myc表达调控的改变

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-101

A W Braithwaite, K E Fry, S LeJeune, H Naora

{"title":"Altered regulation of c-myc expression in adenovirus-transformed cells.","authors":"A W Braithwaite, K E Fry, S LeJeune, H Naora","doi":"10.1139/g86-101","DOIUrl":"https://doi.org/10.1139/g86-101","url":null,"abstract":"Expression of the oncogenes c-myc, c-raski, and p53 is studied in normal primary mouse cultures and in two adenovirus-transformed mouse cell lines. In all cases oncogene expression is measured in cells arrested in G1 (or G0 for primary cells) by serum starvation and at different times after cell cycle traverse is stimulated by addition of high serum. For primary mouse cells, c-myc mRNA levels are found to increase four- to six-fold within 1 h of serum addition and then decline by 4 h to nearly the level observed in serum-starved cells. This level is maintained throughout the remainder of the cell cycle. The early induction of c-myc is dependent on serum concentration and is independent of cell density. These results confirm and extend previous observations for primary cells. By contrast, expression of c-raski does not vary at all through the cell cycle and p53 increases with time after mitogenic stimulation. In the adenovirus-transformed cell lines, the regulation of expression of c-myc with respect to the cell cycle is altered. There is an increase in c-myc in S phase cells which is dependent on cell density and the early induction in response to serum addition as seen in primary cells is absent. Expressions of c-raski and p53 are found to show similar profiles to those observed for primary cells.","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"28 5","pages":"712-24"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1139/g86-101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14919849","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

Selection on phenotypic variation of pupa weight in Tribolium castaneum 蓖麻虫蛹重表型变异的选择

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-119

S. Cardin, F. Minvielle

引用次数: 12

Characterization of human chromosomal constitutive heterochromatin. 人染色体组成异染色质的表征。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-093

A Babu, R S Verma

{"title":"Characterization of human chromosomal constitutive heterochromatin.","authors":"A Babu, R S Verma","doi":"10.1139/g86-093","DOIUrl":"https://doi.org/10.1139/g86-093","url":null,"abstract":"The constitutive heterochromatin of human chromosomes is evaluated by various selective staining techniques, i.e., CBG, G-11, distamycin A plus 4,6-diamidino-2-phenylindole-2-HCl (DA/DAPI), the fluorochrome D287/170, and Giemsa staining following the treatments with restriction endonucleases AluI and HaeIII. It is suggested that the constitutive heterochromatin could be arbitrarily divided into at least seven types depending on the staining profiles expressed by different regions of C-bands. The pericentromeric C-bands of chromosomes 1, 5, 7, 9, 13-18, and 20-22 consist of more than one type of chromatin, of which chromosome 1 presents the highest degree of heterogeneity. Chromosomes 3 and 4 show relatively less consistent heterogeneous fractions in their C-bands. The C-bands of chromosomes 10, 19, and the Y do not have much heterogeneity but have characteristic patterns with other methods using restriction endonucleases. Chromosomes 2, 6, 8, 11, 12, and X have homogeneous bands stained by the CBG technique only. Among the chromosomes with smaller pericentric C-bands, chromosome 18 shows frequent heteromorphic variants for the size and position (inversions) of the AluI resistant fraction of C-band. The analysis of various types of heterochromatin with respect to specific satellite and nonsatellite DNA sequences suggest that the staining profiles are probably related to sequence diversity.","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"28 5","pages":"631-44"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1139/g86-093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13581664","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: 37