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Cytogenetic characterization of |
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| Authors: | Aline Dias Brandão Lyderson Facio Viccini Fátima Regina Gonçalves Salimena André Luiz Laforga Vanzela Shirlei Maria Recco-Pimentel |
| Affiliation: | (1) Departamento de Biologia Celular, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, 13084-971 Campinas, SP, Brazil;(2) Departamento de Biologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora (UFJF), 36036-330 Juiz de Fora, MG, Brazil;(3) Departamento de Botanica, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora (UFJF), 36036-330 Juiz de Fora, MG, Brazil;(4) Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina (UEL), 86051-990 Londrina, PR, Brazil |
| Abstract: | The aim of this work was to determine the cytogenetic characteristics of Brazilian Lippia alba (Mill) N. E. Brown and Lantana camara Plum. that could be useful for future characterization of these genera. Our analyses revealed that Li. alba has 2n=30 chromosomes consisting of ten metacentric and five submetacentric pairs, while La. camara has 44 metacentric chromosomes. The large blocks of heterochromatin seen in both species suggest an apomorphic condition. Six 45S rDNA sites were detected in both species by fluorescence in situ hybridization (FISH). Two and four 5S rDNA sites were observed in Li. alba and La. camara, respectively. Meiotic analysis revealed a normal chromosomal behaviour. The number of chromosomes and the presence of 45S rDNA and 5S rDNA sites do not exclude a possible polyploid origin. The cytogenetic differences between La. camara and Li. alba may be useful markers for differentiating these species. |
| Keywords: | Chromosome Cytogenetic characterization FISH Lantana Lippia Verbenaceae |
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