THE EFFECT OF GENOTYPE X CYTOPLASM INTERACTION ON MEIOTIC BEHAVIOR OF MAIZE CHROMOSOMES

被引：2

作者：

KRULEVA, MM ^{[1
]}

KOROL, AB ^{[1
]}

DANKOV, TG ^{[1
]}

SKORPAN, VG ^{[1
]}

PREYGEL, IA ^{[1
]}

机构：

[1] ACAD SCI MOSSR,INST GENET,KISHINEV,MOLDAVIA,USSR

来源：

GENOME | 1992年 / 35卷 / 04期

关键词：

MAIZE; CHIASMA FREQUENCY; MALE STERILE CYTOPLASM; UNIVALENT FORMATION; GENOTYPE X CYTOPLASM INTERACTION;

D O I：

10.1139/g92-099

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The effect of four isogenic cytoplasmic types, normal, Salvador, Texas, and Charrua (the latter three causing male sterility), on the process of chiasma formation has been studied using two different maize hybrids. The cytoplasmic male sterility determinants have been shown to reduce the rate of interstitial exchanges per nucleus and per bivalent and the frequency of univalents. Increased variation between plants and relative stability of the intercellular variation within a plant have been observed for the parameters studied. It is concluded that the determinants of cytoplasmic sterility lower the probability of additional exchanges (relative to the obligate one) and reduce the frequency of premature disruption of one-exchange chromosome associations.

引用

页码：653 / 658

页数：6

共 29 条

[1] EFFECTS OF CONSTITUTIVE HETEROCHROMATIN AND GENOTYPE ON FREQUENCY AND DISTRIBUTION OF CHIASMATA IN THE 7 INDIVIDUAL RYE BIVALENTS [J].