{"title":"蚱蛄(直翅目)核型特征及组成异染色质。","authors":"M J de Souza, R de C de Moura","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Conventional analysis, C-banding, silver nitrate and base specific fluorochrome staining with chromomycin A3 (CMA3) were used to analyse the meiotic chromosomes of the grasshopper Stiphra robusta. Diploid numbers of 2n = 19 in the males and 2n = 20 in the females were observed. The chromosome complement comprised a graded series of uniarmed chromosomes, and the X chromosome was medium sized. The nucleolar organizer regions, restricted to the bivalent chromosomes 6, 7 and 8, were CMA3 positive.</p>","PeriodicalId":11078,"journal":{"name":"Cytobios","volume":"101 398","pages":"137-44"},"PeriodicalIF":0.0000,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Karyotypic characterization and constitutive heterochromatin in the grasshopper Stiphra robusta (Orthoptera proscopiidae).\",\"authors\":\"M J de Souza, R de C de Moura\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Conventional analysis, C-banding, silver nitrate and base specific fluorochrome staining with chromomycin A3 (CMA3) were used to analyse the meiotic chromosomes of the grasshopper Stiphra robusta. Diploid numbers of 2n = 19 in the males and 2n = 20 in the females were observed. The chromosome complement comprised a graded series of uniarmed chromosomes, and the X chromosome was medium sized. The nucleolar organizer regions, restricted to the bivalent chromosomes 6, 7 and 8, were CMA3 positive.</p>\",\"PeriodicalId\":11078,\"journal\":{\"name\":\"Cytobios\",\"volume\":\"101 398\",\"pages\":\"137-44\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cytobios\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cytobios","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Karyotypic characterization and constitutive heterochromatin in the grasshopper Stiphra robusta (Orthoptera proscopiidae).
Conventional analysis, C-banding, silver nitrate and base specific fluorochrome staining with chromomycin A3 (CMA3) were used to analyse the meiotic chromosomes of the grasshopper Stiphra robusta. Diploid numbers of 2n = 19 in the males and 2n = 20 in the females were observed. The chromosome complement comprised a graded series of uniarmed chromosomes, and the X chromosome was medium sized. The nucleolar organizer regions, restricted to the bivalent chromosomes 6, 7 and 8, were CMA3 positive.
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