中国西北地区内陆盐湖卤虫染色体倍性组成的研究

Studies on the Chromosomal Ploidy Composition of Artemia from Inland Salt Lakes in Northwest China

本文研究了新疆维吾尔自治区（简称新疆）、青海省和内蒙古自治区（简称内蒙古）19个由虫品系的染色体倍性组成其中属于两性生殖类型的卤虫有13个品系，孤雌生殖类型的卤虫有6个品系。13个行两性生殖品系的染色体为：二倍体，2n=42。6个行孤雌生殖品系的染色体，既有二倍体2n=42，又四倍体，4n＝84和五倍体，5n＝105。一部分细胞的染色体表现非整倍的特点。

Chromosomal ploidy compositions of 19 strains of Anemia from Xinjiang, Qinhaiand Net Monggol were studied. 13 strains of them are bisexual reproduction type and 6 are gynecogenetic reproduction type.The kind of chromosomes of the 13 bisexual reproduction strains belongs to diploid, 2n = 42.The chromosomes of other 6 gynecogenetic strains have either diploid, 2n = 42, or tetraploid, 4n= 4S, and pentaploid, 5n = 105. Chromosomes of 6 gynecogenetic strains were diploid, 2n= 42,as well as tetraploid, 4n = 84, and pentaploid, 5n = 105. Chromosomes of some cells of these strainsshow heteroploidy ploidv character.