新热带鹦鹉科鸟类的细胞分类学研究及三种新核型的描述

Cytotaxonomic considerations on Neotropical Psittacidae birds and description of three new karyotypes.

作者信息

Francisco M R, Galetti Júnior P M

机构信息

Departamento de Genética e Evolução, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil.

出版信息

Hereditas. 2001;134(3):225-8. doi: 10.1111/j.1601-5223.2001.00225.x.

DOI:10.1111/j.1601-5223.2001.00225.x

PMID:11833285

Abstract

Chromosomes obtained from feather tissues of 14 species of Brazilian Psittacidae were analyzed by Giemsa conventional staining and the karyotypes of Ara chloroptera, Propyrrhura maracana and Nandayus nenday are presented for the first time. The remaining species showed no chromosome differences when compared with previous literature data. Two basic karyotype patterns were observed. A karyotype pattern is mostly characterized by biarmed macrochromosomes, while in the other one most macrochromosomes are telocentrics.

摘要

采用吉姆萨常规染色法对14种巴西鹦鹉科鸟类羽毛组织中的染色体进行了分析，并首次呈现了绿翅金刚鹦鹉、蓝紫金刚鹦鹉和黑头凯克鹦鹉的核型。与先前文献数据相比，其余物种未显示出染色体差异。观察到两种基本的核型模式。一种核型模式主要以双臂大染色体为特征，而在另一种模式中，大多数大染色体是端着丝粒染色体。