鸟类核型研究 Ⅲ.莺亚科和鹟亚科14种

本文报道了莺亚科10种和鹟亚科4种的核型,并对已报道过的这二亚科18种鸟类的核型进行了比较研究。这两个亚科通常依据表型差异被划分在一个科——鹟科中。Siblcy(1988)等则依据DNA差异(通过DNA—DNA分子杂交测定)将它们划在不问的三个科(鹟科、莺科和戴菊科)中。核型比较的结果支持了Sibley对这两亚科鸟类的重新划分。

STUDIES ON THE KARYOTYPES OF BIRDS III.10 SPECIES OF WARBLERS AND 4 SPECIES OF FLYCATCHERS (AVES)

The karyotypes of 10 species in Sylviinae and 4 species in Muscicapinae were studied with colchicine-hypotonic-air drying technique from bone marrow cells. The results were given as follows: Sylviinae:Acrocephalus arundinaceus, 2n=80;A. bistrigiceps, 2n=78;Bradypterus thoracicus, 2n=78;Cettia diphone, 2n=78;Locusttella lanceolata, 2n =80;Phylloscopus borealis, 2n =78;P. fuscatus, 2n = 78;P. inornatus, 2n = 78;P. proregulus, 2n = 80;Regulus regulus, 2n=78. Muscicapinae:Ficedula mugimaki, 2n = 80;F. parva, 2n = 80;F. zanthopygia, 2n = 76;Terpsiphone parodist, 2n = 80.The flycatchers had the subtelocentric or telocentric Z chromosome, which showed that their karyotypes were primitive than Warbler's. Goldcrest had more metacentrics, which showed their karyotypes were specialized than Warbler's. Sibley et al. (1988) had placed these three groups into different families by DNA-DNA hybridization data, the karyotype data seem supporting this classification.