FUNCTIONAL UNITS OF MACRONUCLEAR ASSORTMENT IN TETRAHYMENA-THERMOPHILA

被引：3

作者：

MCCOY, JW

机构：

[1] Department of Cell Biology, Albert Einstein College of Medicine, Bronx

来源：

GENETICS RESEARCH | 1979年 / 34卷 / 01期

关键词：

D O I：

10.1017/S0016672300019285

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

T. thermophila macronuclei assorting simultaneously for H (serotype), Chx (cycloheximide resistance), Mpr (methylpurine resistance) and co (conical cell shape), and containing only 1 or 2 copies of the HD allele produced several combinations of phenotypes at the other loci, instead of only 1 or 2 such combinations. Macronuclear subnuclei, if they exist at all, must then frequently exchange parts. Models involving somatic recombination, transient subnuclei or progressive chromosome fragmentation are discussed as possible explanations.

引用

页码：47 / 56

页数：10

共 26 条

[1]

ALLEN SL, 1975, BIOL TETRAHYMENA, P307

[2]

[Anonymous], ROLE CHROMOSOMES DEV

[3]

Bleyman L. K., 1971, P67

[4]

BLEYMAN LK, 1966, GENETICS, V54, P277