Meiotic behavior of small chromosomes in maize

被引：16

作者：

Birchler, James A. ^{[1
]}

Han, Fangpu ^{[2
]}

机构：

[1] Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA

[2] Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Beijing, Peoples R China

来源：

FRONTIERS IN PLANT SCIENCE | 2013年 / 4卷

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

minichromosomes; maize; meiosis; sister chromatid cohesion; synapsis; SISTER-CHROMATID COHESION; B-CHROMOSOME; CENTROMERE; MEIOSIS; SHUGOSHIN; MINICHROMOSOMES; STABILITY; FRAGMENT; BROKEN;

D O I：

10.3389/fpls.2013.00505

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine, and then separate at anaphase I. At anaphase II, sister chromatids separate. However, studies of small chromosomes in maize derived from a variety of sources typically have failure of sister chromatid cohesion at anaphase I. This failure occurs whether there is pairing of two copies of a minichromosome or not. These characteristics have implications for managing the transmission of the first generation artificial chromosomes in plants. Procedures to address these issues of minichromosomes are discussed.

引用

页数：5

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