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Karyotypic Study of Some Species of Serjania and Urvillea (Sapindaceae; Tribe Paullinieae)

1995; Wiley; Volume: 82; Issue: 5 Linguagem: Inglês

10.2307/2445423

1537-2197

Claudia Zampieri Nogueira, Paulo Maurício Ruas, Claudete F. Ruas, María Silvia Ferrucci,

Plant and animal studies

American Journal of BotanyVolume 82, Issue 5 p. 646-654 Systematics and Evolution Karyotypic study of some species of Serjania and Urvillea (Sapindaceae; Tribe Paullinieae) Claudia Zampieri Nogueira, Claudia Zampieri Nogueira Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorPaulo M. Ruas, Paulo M. Ruas Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorClaudete F. Ruas, Claudete F. Ruas Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorMaria S. Ferrucci, Maria S. Ferrucci Instituto de Botanica del Nordeste, Corrientes, ArgentinaSearch for more papers by this author Claudia Zampieri Nogueira, Claudia Zampieri Nogueira Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorPaulo M. Ruas, Paulo M. Ruas Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorClaudete F. Ruas, Claudete F. Ruas Universidade Estadual de Londrina, Departamento de Biologia Geral, Londrina, Paraná, BrazilSearch for more papers by this authorMaria S. Ferrucci, Maria S. Ferrucci Instituto de Botanica del Nordeste, Corrientes, ArgentinaSearch for more papers by this author First published: 01 May 1995 https://doi.org/10.1002/j.1537-2197.1995.tb11509.xCitations: 5 Author for correspondence, current address: Brigham Young University, Department of Botany and Range Science, Provo, UT. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Karyotypes of six species (in ten populations) of the genus Serjania and one species of the genus Urvillea were studied using root tip mitotic metaphases. All species of Serjania were diploids with 2n = 24 chromosomes and the species of Urvillea was octoploid with 2n = 86 chromosomes. Analysis of the karyotypes of Serjania showed that the species are differentiated by chromosomic structural changes. Chromosome lengths showed great differences among the species that may be explained by chromosomal deletion or addition. The basic chromosomic number is x = 12 for Serjania and x = 11 for Urvillea. In Urvillea the evolutionary trend may be toward polyploidy followed by reductional aneuploidy. The Giemsa (C-band) staining technique was applied in Serjania; however, no clear blocks of heterochromatin were observed. This result agrees with the presence of semireticulate nuclei. The Nucleolar Organizing Region (NOR-banding) technique was applied in S. communis and S. laruotteana, which showed one and two pairs stained, respectively. Variation in the number of nucleoli was observed among the different populations of Serjania. This variation could be explained by the presence of small nucleolar organizer regions that occur scattered along the genome and are not detected by the silver staining methodology. Citing Literature Volume82, Issue5May 1995Pages 646-654 RelatedInformation