The occurrence of different Bs in Cestrum intermedium and C-strigilatum (Solanaceae) evidenced by chromosome banding

被引：17

作者：

Fregonezi, JN

Rocha, C

Torezan, JMD

Vanzela, ALL ^{[1
]}

机构：

[1] Univ Estadual Londrina, CCB, Dept Biol Geral, BR-86051990 Londrina, PR, Brazil

[2] Univ Estadual Londrina, CCB, Dept Biol Anim & Vegetal, BR-86051990 Londrina, PR, Brazil

来源：

CYTOGENETIC AND GENOME RESEARCH | 2004年 / 106卷 / 2-4期

关键词：

D O I：

10.1159/000079285

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

In this study, we examine the morphology, mitotic stability, meiotic behavior and the composition of heterochromatin of B chromosomes in Cestrum intermedium and C. strigilatum. The results showed that B chromosome number shows intraindividual variation in the root meristem, which seems to lead to a slight rate of B elimination in this somatic tissue. B chromosomes in both species were similar in size and shape, but differed with regard to the type, size and distribution of heterochromatin. Possible evolutionary pathways for B chromosome origin in Cestrum are discussed. Copyright (C) 2004 S. Karger AG, Basel.

引用

页码：184 / 188

页数：5

共 5 条

[1] Distribution of a Ty3/gypsy-like retroelement on the a and B-chromosomes of Cestrum strigilatum Ruiz & Pav. and Cestrum intermedium sendtn. (Solanaceae)
Fregonezi, Jeferson Nunes
Vilas-Boas, Laurival A.
Pelegrinelli Fungaro, Maria Helena
Gaeta, Marcos Letaif
Laforga Vanzela, Andre Luis
GENETICS AND MOLECULAR BIOLOGY, 2007, 30 (03) : 599 - 604
[2] Karyotype differentiation of four Cestrum species (Solanaceae) revealed by fluorescent chromosome banding and FISH
Fernandes, Thiago
Andrade de Almeida Rego, Leticia do Nascimento
Nardy, Mariana
Yuyama, Priscila Mary
Laforga Vanzela, Andre Luis
GENETICS AND MOLECULAR BIOLOGY, 2009, 32 (02) : 320 - 327
[3] Cestrum strigilatum (Ruiz & Pavon, 1799) B chromosome shares repetitive DNA sequences with A chromosomes of different Cestrum (Linnaeus, 1753) species
Laforga Vanzela, Andre Luis
de Paula, Adriano Alves
Quintas, Carolina Cristina
Fernandes, Thiago
da Cruz Baldissera, Joana Neres
de Souza, Thaissa Boldieri
COMPARATIVE CYTOGENETICS, 2017, 11 (03) : 511 - 524
[4] COLD-SENSITIVE CHROMOSOME REGIONS AND HETEROCHROMATIN IN CESTRUM (SOLANACEAE) - C-STRIGILLATUM, C-FASCICULATUM, AND C-ELEGANS
BERG, C
GREILHUBER, J
PLANT SYSTEMATICS AND EVOLUTION, 1993, 185 (1-2) : 133 - 151
[5] C-BANDING AND INSITU HYBRIDIZATION ANALYSES OF AGROPYRON-INTERMEDIUM, A PARTIAL WHEAT X AG INTERMEDIUM AMPHIPLOID, AND 6 DERIVED CHROMOSOME ADDITION LINES
FRIEBE, B
MUKAI, Y
GILL, BS
CAUDERON, Y
THEORETICAL AND APPLIED GENETICS, 1992, 84 (7-8) : 899 - 905

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