{"title":"四种龙葵的核型多样性及其分类意义","authors":"Suma Akter, Chandan Kumar Dash, Syeda Sharmeen Sultana","doi":"10.1002/fedr.202200054","DOIUrl":null,"url":null,"abstract":"<p>Four <i>Terminalia</i> L. species namely, <i>T. arjuna</i> (Roxb.) Wight and Arn., <i>T. bellirica</i> (Gaertn.) Roxb., <i>T. chebula</i> Retz. and <i>T. catappa</i> L. were studied to evaluate the chromosomal relationship corresponding with their taxonomic characters. Analysis of mitotic metaphases showed that the somatic chromosome numbers and the centromeric formulas of these species were 2<i>n</i> = 24 (16m + 8sm) for <i>T. arjuna</i>, 2<i>n</i> = 48 (36m + 12sm) for <i>T. bellirica</i>, 2<i>n</i> = 48 (46m + 2sm) for <i>T. chebula</i> and 2<i>n</i> = 24 (24m) for <i>T. catappa</i>. Two pairs of satellites were found in <i>T. bellirica</i> and <i>T. catappa</i>. Based on different karyological data, <i>T. chebula</i> was positioned in 1A, <i>T. arjuna</i> and <i>T. catappa</i> in 1B and <i>T. bellirica</i> in 2B. Based on comparative karyomorphological data, <i>T. bellirica</i> and <i>T. arjuna</i> presented more advanced features in comparison with <i>T. chebula</i> and <i>T. catappa</i>, which also correlated with the taxonomic characters in respect of the evolutionary point of view. Therefore, the present investigation effectively evaluated chromosomal relationships with morphological implications that conferred upon evolutionary changes among these four <i>Terminalia</i> species.</p>","PeriodicalId":53662,"journal":{"name":"Feddes Repertorium","volume":"134 3","pages":"200-209"},"PeriodicalIF":0.0000,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Karyotype diversity in four Terminalia L. species and its taxonomic implications\",\"authors\":\"Suma Akter, Chandan Kumar Dash, Syeda Sharmeen Sultana\",\"doi\":\"10.1002/fedr.202200054\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Four <i>Terminalia</i> L. species namely, <i>T. arjuna</i> (Roxb.) Wight and Arn., <i>T. bellirica</i> (Gaertn.) Roxb., <i>T. chebula</i> Retz. and <i>T. catappa</i> L. were studied to evaluate the chromosomal relationship corresponding with their taxonomic characters. Analysis of mitotic metaphases showed that the somatic chromosome numbers and the centromeric formulas of these species were 2<i>n</i> = 24 (16m + 8sm) for <i>T. arjuna</i>, 2<i>n</i> = 48 (36m + 12sm) for <i>T. bellirica</i>, 2<i>n</i> = 48 (46m + 2sm) for <i>T. chebula</i> and 2<i>n</i> = 24 (24m) for <i>T. catappa</i>. Two pairs of satellites were found in <i>T. bellirica</i> and <i>T. catappa</i>. Based on different karyological data, <i>T. chebula</i> was positioned in 1A, <i>T. arjuna</i> and <i>T. catappa</i> in 1B and <i>T. bellirica</i> in 2B. Based on comparative karyomorphological data, <i>T. bellirica</i> and <i>T. arjuna</i> presented more advanced features in comparison with <i>T. chebula</i> and <i>T. catappa</i>, which also correlated with the taxonomic characters in respect of the evolutionary point of view. Therefore, the present investigation effectively evaluated chromosomal relationships with morphological implications that conferred upon evolutionary changes among these four <i>Terminalia</i> species.</p>\",\"PeriodicalId\":53662,\"journal\":{\"name\":\"Feddes Repertorium\",\"volume\":\"134 3\",\"pages\":\"200-209\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-07-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Feddes Repertorium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/fedr.202200054\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Feddes Repertorium","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/fedr.202200054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
Karyotype diversity in four Terminalia L. species and its taxonomic implications
Four Terminalia L. species namely, T. arjuna (Roxb.) Wight and Arn., T. bellirica (Gaertn.) Roxb., T. chebula Retz. and T. catappa L. were studied to evaluate the chromosomal relationship corresponding with their taxonomic characters. Analysis of mitotic metaphases showed that the somatic chromosome numbers and the centromeric formulas of these species were 2n = 24 (16m + 8sm) for T. arjuna, 2n = 48 (36m + 12sm) for T. bellirica, 2n = 48 (46m + 2sm) for T. chebula and 2n = 24 (24m) for T. catappa. Two pairs of satellites were found in T. bellirica and T. catappa. Based on different karyological data, T. chebula was positioned in 1A, T. arjuna and T. catappa in 1B and T. bellirica in 2B. Based on comparative karyomorphological data, T. bellirica and T. arjuna presented more advanced features in comparison with T. chebula and T. catappa, which also correlated with the taxonomic characters in respect of the evolutionary point of view. Therefore, the present investigation effectively evaluated chromosomal relationships with morphological implications that conferred upon evolutionary changes among these four Terminalia species.
期刊介绍：
Feddes Repertorium - Journal of Botanical Taxonomy and Geobotany is one of the world"s leading publications in theory and practice. Original research papers and reviews cover all groups of the plant world, including extant and fossil. Theory and principles of taxonomy, nomenclature, techniques and methodology, on evolution and phylogeny and descriptions of new taxa are considered as well. The reader will also find information on the history of flora and vegetation. All papers are internationally refereed by experts in their respective fields.
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