摘要
本文报道了攀禽类8科20种的核型,并对已报道过的16科96种攀禽类鸟类的核型进行了比较研究。攀禽类通常依据表型差异被划分为对趾型,并趾型和异趾型三个类群。Sibley(1988)等则依据DNA差异(通过DNA-DNA分子杂交测定)分为三个小纲:啄木鸟小纲,佛法僧小纲和雀小纲。这两种划分是截然不同的。核型比较的结果支持了Sibley对攀禽类的划分。
The karyotypes of 20 species of 8 families of Climber birds were studied from bone marrow cells with coichicine-hypotonic-airdrying technique. The results were given as follow.
Picidae: Jynx torquilla, 2n = 90; Dendrolopos hyperythrus, 2n = 92; D. leucotos, 2n = 90; D. kizuki, 2n = 92; Picus canus, 2n = 92.
Upupidae: Upupa epops, 2n=126.
Alcedinidae: Alcedo atthis, 2n=132; Halcyon pileata, 2n = 84.
Cuculidae: Cuculis canorus, 2n = 78; C. saturatus, 2n = 76; C. micro-ptaus, 2n = 78; C. fugax, 2n = 78.
Apodidae: Apus pacificus, 2n=62; Hirumd-apus candacutus, 2n = 64.
Psittacidae: Melopsittacus undulatus, 2n = 62.
Caprimulgidae: Caprimulgus indicus, 2n = 76.
Strigidae: Otus scops, 2n=76; O. bakkamoena, 2n = 82; Asio flammeus, 2n=82; Athene nodus, 2n=80.
The 15 families of Climber birds have usually been divided into 3 foot-types. Zygodactylous, Syndatylous and Heterodactylous. Sibley and Ahlquist (1988) assigned them to 3 Parv-classes: Picae, Coraciae and Passerae. These two divisions are very different each other. The karyotype comparisons of the Climber birds support the division by Sibley et at., according DNA-DNA hybridization data.
关键词
攀禽
核型
分类学
种系发生
Climber-birds, Karyotype, Phylogeny, Systematics
