Cytogenetic characterization of Lippia alba and Lantana camara (Verbenaceae) from Brazil

被引：16
|
作者：
Brandao, Aline Dias
Viccini, Lyderson Facio
Goncalves Salimena, Fatima Regina
Laforga Vanzela, Andre Luiz
Recco-Pimentel, Shirlei Maria
机构：
[1] Univ Estadual Campinas, Dept Biol Celular, Inst Biol, BR-13084971 Campinas, SP, Brazil
[2] UFJF, Dept Biol, Inst Ciencias Biol, BR-36036330 Juiz De Fora, MG, Brazil
[3] Univ Estadual Londrina, Dept Biol Geral, Ctr Ciencias Biol, BR-86051990 Londrina, PR, Brazil
来源：
JOURNAL OF PLANT RESEARCH | 2007年 / 120卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
chromosome; cytogenetic characterization; FISH; Lantana; Lippia; Verbenaceae;
D O I：
10.1007/s10265-006-0041-4
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
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.
引用
收藏
页码：317 / 321
页数：5
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