%0 Journal Article
%T THE STUDY OF B CHROMOSOMES IN Drosophila albomicans 1. THE NUMBER AND FREQUENCY OF Bs IN KUNMING POPULATION<br>银额果蝇的B染色体研究：1.昆明群体的Bs数目和频率
%A Ling Fayao
%A <br>凌发瑶
%A 北川修
%J 动物学研究
%D 1991
%I Chinese Academy of Sciences
%X In this study, mitotic metaphase of Drosophila albomicans with B-chro-mosomes were found in Kunming population. Their frequency of presence of B-chromosomes were 69.1%. At present, among D. albomicans has been studied from several localities, the frequency of B-chromosomes of Kunming population were the hightest. The number of B-chromosomes varied from 1 to 6 and differed between each iso-femals line of them as well as that of between individuals and cells. All the B-chromosomes were the smallest, dot-shaped of the karyotype. Both C-band and G-band staining are positive for B-chromosomes.
%K Drosophila albomicans
%K B-chromosome
%K Kunming population<br>银额果蝇
%K 昆明群体
%K B染色体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=7C502F1A6798ACE1B8C57E291C48C7F1&aid=479BF5E928E4AF2A6021BA683FC098E4&yid=116CB34717B0B183&vid=59906B3B2830C2C5&iid=CA4FD0336C81A37A&sid=39EEF47180459690&eid=10F298ED9F164662&journal_id=0254-5853&journal_name=动物学研究&referenced_num=8&reference_num=2