CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130173
J H Bryan, R L Hybertson
{"title":"The in vitro stimulation of lymphocytes from peripheral blood and lymph nodes of the laboratory mouse.","authors":"J H Bryan, R L Hybertson","doi":"10.1159/000130173","DOIUrl":"https://doi.org/10.1159/000130173","url":null,"abstract":"The results of comparative studies of the efficacy of phytohemagglutinin (PHA-P) and pokeweed mitogen (PWM) as mitotic stimulators for in vitro cultures of mouse lymphocytes are reported. These studie","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 1","pages":"25-34"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16109758","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130201
F Lo Curto, S Scappaticci, M Fraccaro
{"title":"Chromosome identification in a Chinese hamster pseudodiploid cell line (CHEF-125).","authors":"F Lo Curto, S Scappaticci, M Fraccaro","doi":"10.1159/000130201","DOIUrl":"https://doi.org/10.1159/000130201","url":null,"abstract":"The chromosomes of the Chinese hamster established cell line CHEF-125 were studied by quinacrine fluorescence, acetic-saline-Giemsa staining, and a technique for localizing constitutive heterochromati","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 4","pages":"305-12"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15226249","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130176
P Citoler, A Gropp, A T Natarajan
{"title":"Timing of DNA replication of autosomal heterochromatin in the hedgehog.","authors":"P Citoler, A Gropp, A T Natarajan","doi":"10.1159/000130176","DOIUrl":"https://doi.org/10.1159/000130176","url":null,"abstract":"The time sequence of DNA synthesis of autosomal constitutive heterochromatin and euchromatin was studied in kidney-cell cultures of the European hedgehog which had been pulse labeled with 3H-thymidine. The mean length of the S-period is 10.4 h for euchromatin and 5.2 h for constitutive heterochromatin. Thus the latter replicates DNA twice as fast as euchromatin. Constitutive heterochromatin starts replicating DNA about 7 h later and finishes 1.5 h later than euchromatin. The asynchrony of DNA synthesis between the two types of chromatin is particularly marked in the beginning of the S-phase. The inactive X chromosome also synthesizes DNA faster than euchromatin; it begins a short time before and finishes slightly after constitutive heterochromatin. The finding of accelerated DNA synthesis in autosomal heterochromatin lends itself to several possible explanations, although it remains difficult to understand fully at present.","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 1","pages":"53-62"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16151831","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130199
K M Hansen
{"title":"The karyotype of the pig (Sus scrofa domestica), identified by quinacrine mustard staining and fluorescence microscopy.","authors":"K M Hansen","doi":"10.1159/000130199","DOIUrl":"https://doi.org/10.1159/000130199","url":null,"abstract":"The karyotype of the pig (Sus scrofa domestica ) was characterized by means of quinacrine mustard staining and fluorescence microscopy. The material examined consisted of 15 pigs of","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 4","pages":"286-94"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15662257","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}
{"title":"The C-band and G-band patterns of Microtus agrestis chromosomes.","authors":"J E Cooper, T C Hsu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 4","pages":"295-304"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15662258","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130172
J P Bogart, A O Wasserman
{"title":"Diploid-polyploid cryptic species pairs: a possible clue to evolution by polyploidization in anuran amphibians.","authors":"J P Bogart, A O Wasserman","doi":"10.1159/000130172","DOIUrl":"https://doi.org/10.1159/000130172","url":null,"abstract":"Three of the seven currently recognized bisexual polyploid anuran species have morphologically very similar diploid “cryptic species” counterparts. The North American diploidtetraploid cryptic species","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 1","pages":"7-24"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16109761","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130182
J Wahrman, J Atidia, R Goitein, T Cohen
{"title":"Pericentric inversions of chromosome 9 in two families.","authors":"J Wahrman, J Atidia, R Goitein, T Cohen","doi":"10.1159/000130182","DOIUrl":"https://doi.org/10.1159/000130182","url":null,"abstract":"Two similar pericentric inversions of chromosome 9 are transmitted in two unrelated families, each of which includes a consanguineous marriage. In both instances the inverted segment comprises the cen","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 2","pages":"132-44"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130182","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16113827","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130200
J. Cooper, T. Hsu
{"title":"The C-band and G-band patterns of Microtus agrestis chromosomes.","authors":"J. Cooper, T. Hsu","doi":"10.1159/000130200","DOIUrl":"https://doi.org/10.1159/000130200","url":null,"abstract":"The C-band and G-band patterns of Microtus agrestis metaphase chromosomes are described. The C-band pattern reveals constitutive heterochromatin as uniformly intenselystained areas but cannot aid in identifying autosomal pairs. The G-bands revealed by a heat renaturation method (ASG) were compared with those revealed by treatment with three proteolytic enzymes. All procedures yield apparently the same specific pattern of crossbands on the autosomes, and each autosomal pair can therefore be identified by its characteristic pattern. The constitutive heterochromatin of the sex chromosomes stains uniformly with the heat renaturation method but is subdivided into regions with different staining intensities with each enzyme treatment. A G-band karyotype for Microtus agrestis metaphase chromosomes is presented.","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 4 1","pages":"295-304"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64616906","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130196
A Gropp, A T Natarajan
{"title":"Karyotype and heterochromatin pattern of the Algerian hedgehog.","authors":"A Gropp, A T Natarajan","doi":"10.1159/000130196","DOIUrl":"https://doi.org/10.1159/000130196","url":null,"abstract":"The Algerian hedgehog (Aethechinus ) has a diploid chromosome number of 48, similar to the European hedgehog species (Erinaceus ) and to the long-eared Asiatic hedg","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 4","pages":"259-69"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16160819","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}
CytogeneticsPub Date : 1972-01-01DOI: 10.1159/000130214
D K Green, J Cameron
{"title":"Metaphase cell finding by machine.","authors":"D K Green, J Cameron","doi":"10.1159/000130214","DOIUrl":"https://doi.org/10.1159/000130214","url":null,"abstract":"The basic elements of a mitotic cell-finding machine are described. The hardware components comprising the machine are a motor-controlled microscope, a vidicon scanner and associated video-signal proc","PeriodicalId":78202,"journal":{"name":"Cytogenetics","volume":"11 6","pages":"475-87"},"PeriodicalIF":0.0,"publicationDate":"1972-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000130214","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15756970","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}