{"title":"Cytogenetic studies of three cultivated hill cotton (Gossypium arboreum L.) varieties from Bangladesh","authors":"A. Hossain, C. Dash, Syeda Sharmeen Sultana","doi":"10.31742/ijgpb.81.1.16","DOIUrl":null,"url":null,"abstract":"Three hill cotton (Gossypium arboreum L.) varieties viz., HC-1, HC-2 and HC-3, released by Bangladesh Cotton Development Board were investigated through orcein, CMAand DAPI-banding for cytogenetical characterization and to elucidate the karyotypic diversity among these varieties. All these three varieties were found to possess 2n = 26 metacentric chromosomes with ‘1A’ karyotype. Based on TF%, AsK% and Syi index, HC-3 was little advanced over HC-1 and HC-2. These three varieties showed differential Chromomycin A3 (CMA)- and 4Ê-6 Diamidino-2-Phenyl Indole (DAPI)-banding patterns and a tendency of acumulation of repetitive sequences at the terminal regions was observed. Despite possessing same somatic chromosome number these three hill cotton varieties could be characterized by diversified karyotypic parameters through differential staining.","PeriodicalId":13321,"journal":{"name":"Indian Journal of Genetics and Plant Breeding","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Genetics and Plant Breeding","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.31742/ijgpb.81.1.16","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Three hill cotton (Gossypium arboreum L.) varieties viz., HC-1, HC-2 and HC-3, released by Bangladesh Cotton Development Board were investigated through orcein, CMAand DAPI-banding for cytogenetical characterization and to elucidate the karyotypic diversity among these varieties. All these three varieties were found to possess 2n = 26 metacentric chromosomes with ‘1A’ karyotype. Based on TF%, AsK% and Syi index, HC-3 was little advanced over HC-1 and HC-2. These three varieties showed differential Chromomycin A3 (CMA)- and 4Ê-6 Diamidino-2-Phenyl Indole (DAPI)-banding patterns and a tendency of acumulation of repetitive sequences at the terminal regions was observed. Despite possessing same somatic chromosome number these three hill cotton varieties could be characterized by diversified karyotypic parameters through differential staining.
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Advance the cause of genetics and plant breeding and to encourage and promote study and research in these disciplines in the service of agriculture; to disseminate the knowledge of genetics and plant breeding; provide facilities for association and conference among students of genetics and plant breeding and for encouragement of close relationship between them and those in the related sciences; advocate policies in the interest of the nation in the field of genetics and plant breeding, and facilitate international cooperation in the field of genetics and plant breeding.
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