Idengaku zasshi最新文献_第9页

Synthesis of free X duplications carrying a specific region of the centromeric heterochromatin in Drosophila melanogaster. 黑腹果蝇中携带着丝着性异染色质特定区域的自由X复制体的合成。

Idengaku zasshi Pub Date : 1993-04-01 DOI: 10.1266/jjg.68.83

H S Park, M T Yamamoto

引用次数: 3

A theoretical approach to chromosome banding pattern analysis. 染色体带型分析的理论方法。

Idengaku zasshi Pub Date : 1993-04-01 DOI: 10.1266/jjg.68.97

H T Imai

{"title":"A theoretical approach to chromosome banding pattern analysis.","authors":"H T Imai","doi":"10.1266/jjg.68.97","DOIUrl":"https://doi.org/10.1266/jjg.68.97","url":null,"abstract":"Based on a schematic model of karyotype evolution, a new methodology for G-, R-, or Q-banding pattern analysis was investigated. Banding pattern analysis essentially depends on the unidirectional alteration and the randomness of the exchange sites of the AM-inversion. In karyotypes that evolved by AM-inversion and Robertsonian rearrangement, two matching patterns appear; (1) tandem and (2) complementary matching patterns. The former is characteristic of a single lineage sharing the same AM-inversions, and the latter appears in different lineages sharing different AM-inversions, by which it is theoretically possible to detect the ancestral karyotype and to reconstruct the karyotype phylogeny (cladogram). In contrast, the evolutionary pathway cannot always be perceived if karyotypes evolve only by Robertsonian rearrangement. The tandem matching pattern does not always mean tandem fusion, but can be interpreted as 'tandem fission' by a combination of AM-inversion and centric fission. Tandem fusion and MM-inversion often cause entangled matching patterns, and thus they interfere with banding pattern analysis. Some methodological problems inherent in the conventional banding pattern analysis are highlighted, and suggested that such problems can be minimized by using the karyograph method. The methodology of banding pattern analysis proposed in the present paper will be applicable for matching the chromosome map of genetic markers among different species.","PeriodicalId":13120,"journal":{"name":"Idengaku zasshi","volume":"68 2","pages":"97-118"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1266/jjg.68.97","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19355482","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

RNA editing of rapeseed mitochondrial atp9 transcripts: RNA editing changes four amino acids, but termination codon is already encoded by genomic sequence. 油菜籽线粒体atp9转录本的RNA编辑:RNA编辑改变了四个氨基酸，但终止密码子已经被基因组序列编码。

Idengaku zasshi Pub Date : 1993-02-01 DOI: 10.1266/jjg.68.47

H Handa

引用次数: 11

Ty1-copia group retrotransposons as ubiquitous components of plant genomes. ty1复制组反转录转座子作为植物基因组中普遍存在的成分。

Idengaku zasshi Pub Date : 1993-02-01 DOI: 10.1266/jjg.68.35

H Hirochika, R Hirochika

引用次数: 150

Transposable elements in commercially useful insects: I. Southern hybridization study of silkworms and honeybees using Drosophila probes. 商业昆虫中的转座因子:1 .利用果蝇探针对蚕和蜜蜂的南方杂交研究。

Idengaku zasshi Pub Date : 1993-02-01 DOI: 10.1266/jjg.68.63

K Kimura, T Okumura, O Ninaki, M G Kidwell, K Suzuki

引用次数: 7

Quantitative genetic study on sexual difference in emigration behavior of Drosophila melanogaster in a natural population. 自然种群黑腹果蝇迁徙行为性别差异的定量遗传学研究。

Idengaku zasshi Pub Date : 1992-12-01 DOI: 10.1266/jjg.67.463

K Mikasi

引用次数: 4

A novel cDNA clone for acid invertase in tomato fruit. 一个新的番茄果实酸性转化酶cDNA克隆。

Idengaku zasshi Pub Date : 1992-12-01 DOI: 10.1266/jjg.67.491

A Ohyama, M Hirai, S Nishimura

引用次数: 12

Variance component analysis of bristle characters in local populations of Drosophila melanogaster. 黑腹果蝇地方种群刚毛性状的方差成分分析。

Idengaku zasshi Pub Date : 1992-12-01 DOI: 10.1266/jjg.67.449

M Ichinose, H Tachida, T Mukai

{"title":"Variance component analysis of bristle characters in local populations of Drosophila melanogaster.","authors":"M Ichinose, H Tachida, T Mukai","doi":"10.1266/jjg.67.449","DOIUrl":"https://doi.org/10.1266/jjg.67.449","url":null,"abstract":"The genetic variabilities of sternopleural and abdominal bristle numbers existing in local natural populations were assessed. Using second chromosome lines of Drosophila melanogaster extracted from three natural populations in Japan (the Ishigakijima, Ogasawara and Aomori populations), experiments were conducted to estimate the components of genetic variances, additive and dominance variances. The following results were obtained: For both sternopleural and abdominal bristle numbers, the additive genetic variances (sigma 2A) were much larger than the dominance variances (sigma 2D) especially in the southern populations. For example, in the Ishigakijima population, for females sternopleural bristle numbers of the inversion-free chromosome group, the additive and dominance variances were estimated to be 1.255 +/- 0.2034 and 0.0552 +/- 0.0180, respectively. The magnitudes of the estimates of additive genetic variances were nearly equal from north to south. By comparing the additive genetic variances of the inversion-free chromosome group with those of the In(2L)t-carrying chromosome group, it was inferred that sufficient number of generations to achieve the equilibrium state has not passed since the introduction of a single or a small number of the In(2L)t-carrying chromosomes to the Ishigakijima population.","PeriodicalId":13120,"journal":{"name":"Idengaku zasshi","volume":"67 6","pages":"449-61"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1266/jjg.67.449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12479664","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: 2

Action site of the lethal Ay gene in the mouse embryo. 小鼠胚胎中致死性Ay基因的作用位点。

Idengaku zasshi Pub Date : 1992-10-01 DOI: 10.1266/jjg.67.357

Y Saijoh, T Takeuchi

{"title":"Action site of the lethal Ay gene in the mouse embryo.","authors":"Y Saijoh, T Takeuchi","doi":"10.1266/jjg.67.357","DOIUrl":"https://doi.org/10.1266/jjg.67.357","url":null,"abstract":"We investigated the lethal effect of Ay gene in embryos at the preimplantation stage in vitro. First, the development until the blastocyst stage and the division of individual cells from 8-cell stage embryos were examined. No difference in development was detected between embryos from the experimental cross (Ay/a x Ay/a) and those from the control cross (a/a x a/a). Therefore, it seems that the abnormality of the Ay/Ay embryo does not appear until blastocyst formation in vitro. We subsequently examined the hatching from zona pellucida of the blastocysts. The hatching ratio of the embryos from the experimental cross was significantly lower than that of the control crosses (Ay/a x a/a, a/a x a/a: p < 0.05). Our observation indicates that deficiency of the Ay/Ay embryo can be detected in vitro at hatching. In order to elucidate the mechanism of the gene action of the Ay, we attempted to rescue the lethal embryos from decreased hatching ratio in vitro. When dbcAMP at the concentration of 1 mM was added to the culture medium, the hatching ratio of blastocysts from the experimental cross increased until the level of those from the control crosses. Since this result indicates that the cAMP content in Ay homozygote seemed to be lower than those in a/a and Ay/a, the cAMP content in individual blastocyst was quantified. It is found that Ay homozygosity was associated with lower level of cAMP. When adenylate cyclase was activated by forskolin and cholera toxin, the hatching ratio was increased. These results seem to suggest that Ay homozygote embryos possess a defect in signal transduction system mediated by adenylate cyclase during hatching.","PeriodicalId":13120,"journal":{"name":"Idengaku zasshi","volume":"67 5","pages":"357-70"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1266/jjg.67.357","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12511159","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

Induction of endoreduplication in double minutes of the human neuroblastoma cells and the replication pattern. 人神经母细胞瘤细胞双分钟内内复制的诱导及复制模式。

Idengaku zasshi Pub Date : 1992-10-01 DOI: 10.1266/jjg.67.397

S Takayama, Y Hirano, H Hiramatsu

引用次数: 1