Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie最新文献_第4页

Genetic complementation by somatic hybridization between pantothenate- and adenine-requiring auxotrophs of Datura innoxia P. Mill. 曼陀罗需要泛酸和腺嘌呤的营养缺陷体体细胞杂交的遗传互补。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-12-01 DOI: 10.1139/G86-142

P. Saxena, M. Mii, J. King

引用次数: 4

Chromosomal structure of homozygous common wheat lines obtained from (wheat × Agropyron) × Aegilops speltoides derivatives. II. A screening of paracentric inversions 小麦× Agropyron × Aegilops speltoides纯合子系的染色体结构。2。准中心反转的筛选

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-12-01 DOI: 10.1139/G86-126

Luis Ortiz, Á. González, M. Chueca, Y. Cauderon

{"title":"Chromosomal structure of homozygous common wheat lines obtained from (wheat × Agropyron) × Aegilops speltoides derivatives. II. A screening of paracentric inversions","authors":"Luis Ortiz, Á. González, M. Chueca, Y. Cauderon","doi":"10.1139/G86-126","DOIUrl":"https://doi.org/10.1139/G86-126","url":null,"abstract":"The presence of inversions is important in the evolution and cultivar differentiation of wheats, Even though we can't have conclusive cytological proof of the presence of inversions in wheat, we can use the indirect way of screening paracentric inversions through chromosome configuration at anaphase I and II. This work presents the comparison of 'Chinese Spring' structure (with respect to the presence of inverted segments) to (i) 52 homozygous wheat lines obtained in the progenies of the cross between a wheat × Agropyron intermedium substitution line and Aegilops speltoides homoeologous pairing promotor and (ii) three wheat cultivars ('Vilmorin 27', 'Ducat', and 'Tormes') that were used in developing the above mentioned lines. The three cultivars present inverted segments relative to 'Chinese Spring' structure. Some of these inverted segments are possibly maintained in some of the lines studied. Four of them show the primitive structure of 'Chinese Spring' even though none of the wheat parents had it. Fin...","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"204 1","pages":"906-912"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86007791","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

Random environmental variation and inbreeding: effects on pure-strain and hybrid populations of flour beetles (Tribolium) 随机环境变异和近交:对粉甲虫纯种和杂交种的影响

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-12-01 DOI: 10.1139/G86-124

D. Wool, O. Bergerson

引用次数: 4

Genome analysis of Elymus alatavicus and E. batalinii (Poaceae: Triticeae) alatavicus和batalinii的基因组分析(禾本科:小麦科)

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-108

K. Jensen, D. R. Dewey, K. H. Asay

引用次数: 8

Genetic modifications of dimorphic incompatibility in the Turnera ulmifolia L. complex (Turneraceae) 芜菁复合体二形不亲和性的遗传修饰

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-112

J. Shore, S. Barrett

引用次数: 22

The inheritance of genetic variation in rye (Secale cereale) affecting homoeologous chromosome pairing in hybrids with bread wheat (Triticum aestivum) 黑麦遗传变异对面包小麦(Triticum aestivum)杂种同源染色体配对的影响

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-117

P. Gupta, G. Fedak

引用次数: 16

Gene interactions in Saccharomyces cerevisiae resulting in high-level resistance to the herbicide sulfometuron methyl 酿酒酵母菌基因相互作用导致对除草剂甲基磺脲的高水平抗性

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-118

G. H. Rank

引用次数: 10

Chromosomal location of seed storage protein genes in the genome of Elytrigia elongata 长叶鞘翅种子贮藏蛋白基因的染色体定位

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/G86-114

J. Dvorak, D. Kasarda, M. D. Dietler, E. J. Lew, O. Anderson, J. C. Litts, P. Shewry

引用次数: 26

Heterochromatin composition and nucleolus organizer activity in four canid species. 四种犬科动物的异染色质组成和核仁组织器活性。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-105

B Mayr, G Geber, H Auer, M Kalat, W Schleger

{"title":"Heterochromatin composition and nucleolus organizer activity in four canid species.","authors":"B Mayr, G Geber, H Auer, M Kalat, W Schleger","doi":"10.1139/g86-105","DOIUrl":"https://doi.org/10.1139/g86-105","url":null,"abstract":"Sequential staining with a counterstain-contrasted fluorescent banding technique (chromomycin A3-distamycin A-DAPI) revealed the occurrence of distamycin A-4,6-diamidino-2-phenylindole (DA-DAPI) staining heterochromatin in the centromeric regions of chromosomes 33, 36, 37, and 38 in the wolf (Canis lupus pallipes) and of chromosomes 13, 16, and 23 in the blue fox (Alopex lagopus). The red fox (Vulpes vulpes) lacked such regions. Staining with DAPI--actinomycin D produced a QFH-type banding pattern with clearcut differences in the staining behaviour of DA-DAPI positive regions between these three canid species. Staining with the fluorochrome D 287/170 did not preferentially highlight any of the DA-DAPI positive regions in any of them. Counterstain-enhanced chromomycin A3 R-banding and studies of nucleolus organizer region location and activity confirmed a close relationship between the karyotype of the wolf and the domestic dog. Few heterochromatic marker bands were encountered in these two species, but heterochromatin polymorphism was evident in the blue fox.","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"28 5","pages":"744-53"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1139/g86-105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14920773","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: 9

Variability in the effect of alcohol on alcohol metabolizing enzymes may determine relative sensitivity to alcohols: a new hypothesis. 酒精对酒精代谢酶影响的变异性可能决定了对酒精的相对敏感性:一个新的假设。

Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie Pub Date : 1986-10-01 DOI: 10.1139/g86-111

S M Singh

{"title":"Variability in the effect of alcohol on alcohol metabolizing enzymes may determine relative sensitivity to alcohols: a new hypothesis.","authors":"S M Singh","doi":"10.1139/g86-111","DOIUrl":"https://doi.org/10.1139/g86-111","url":null,"abstract":"Individual and racial differences in response to alcohol and with respect to alcoholism have strong genetic predispositions. Most studies on the actual genetic determinants have concentrated on the isozymes of alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH), the two enzymes of the primary pathway of alcohol metabolism. Although few \"activity\" variants (associated with mutations in the structural genes) of the two enzymes are known to exist in susceptible groups, these observations do not offer an adequate explanation for the observed variability in response to alcohols in the population. Some recent studies have reported alterations in the specific activity of the two enzymes following exposure to alcohol for different lengths of time in man, rat, and mice. The induction-repression so observed is hypothesized to be regulated by one or more inducibility genetic elements (IGE) associated with the structural loci of the two enzymes. Variability in IGE will permit a genotype (individual) specific response in ADH and ALDH specific activity when challenged with a given level of alcohol. Considering the relative toxicity of acetaldehyde, the primary metabolite of this pathway, the resistant individuals would be expected to show ALDH induction. Conversely, the susceptible individuals should respond to alcohol by ALDH repression. The ability of an individual to show induction or repression following alcohol ingestion will depend on his or her IGE genotype(s) associated with specific enzyme loci. Also, the degree of polymorphism at these loci would be expected to be extensive and yet population and race specific. Once experimentally established, this approach could have important implications in screening, counselling, prevention, and in novel approaches to treatment.","PeriodicalId":9589,"journal":{"name":"Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie","volume":"28 5","pages":"789-95"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1139/g86-111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14920774","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: 10