Epialleles - a source of random variation in times of stress

被引：87

作者：

Finnegan, EJ ^{[1
]}

机构：

[1] CSIRO Plant Ind, Canberra, ACT 2601, Australia

来源：

CURRENT OPINION IN PLANT BIOLOGY | 2002年 / 5卷 / 02期

关键词：

D O I：

10.1016/S1369-5266(02)00233-9

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

With the advent of biotechnology, epigenetics has gained in respectability. Recently, focus has moved away from the problems caused by the epigenetic silencing of transgenes to the adaptive advantages offered by stochastic epigenetic variation. Epialleles can form in response to environmental and genomic stresses, including polyploidization. They may be important in acclimation to a range of environmental conditions and in stabilizing polyploid genomes.

引用

收藏

页码：101 / 106

页数：6

相关论文

共 49 条

[1] What does 'chromatin remodeling' mean? [J].

Aalfs, JD ;

Kingston, RE .

TRENDS IN BIOCHEMICAL SCIENCES, 2000, 25 (11) :548-555

[2] Arabidopsis cmt3 chromomethylase mutations block non-CG methylation and silencing of an endogenous gene [J].

Bartee, L ;

Malagnac, F ;

Bender, J .

GENES & DEVELOPMENT, 2001, 15 (14) :1753-1758

[3]

Birve A, 2001, DEVELOPMENT, V128, P3371

[4] Extensive duplication and reshuffling in the arabidopsis genome [J].

Blanc, G ;

Barakat, A ;

Guyot, R ;

Cooke, R ;

Delseny, I .

PLANT CELL, 2000, 12 (07) :1093-1101

[5] REACTIVATION OF A SILENT AC FOLLOWING TISSUE-CULTURE IS ASSOCIATED WITH HERITABLE ALTERATIONS IN ITS METHYLATION PATTERN [J].

BRETTELL, RIS ;

DENNIS, ES .

MOLECULAR & GENERAL GENETICS, 1991, 229 (03) :365-372

[6] PARAMUTATION [J].

BRINK, RA .

ANNUAL REVIEW OF GENETICS, 1973, 7 :129-152

[7] Gene dosage and stochastic effects determine the severity and direction of uniparental ribosomal RNA gene silencing (nucleolar dominance) in Arabidopsis allopolyploids [J].

Chen, ZJ ;

Comai, L ;

Pikaard, CS .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (25) :14891-14896

[8] Tissue-specific patterns of a maize Myb transcription factor are epigenetically regulated [J].

Cocciolone, SM ;

Chopra, S ;

Flint-Garcia, SA ;

McMullen, MD ;

Peterson, T .

PLANT JOURNAL, 2001, 27 (05) :467-478

[9] Genetic and epigenetic interactions in allopolyploid plants [J].

Comai, L .

PLANT MOLECULAR BIOLOGY, 2000, 43 (2-3) :387-399

[10] Phenotypic instability and rapid gene silencing in newly formed arabidopsis allotetraploids [J].

Comai, L ;

Tyagi, AP ;

Winter, K ;

Holmes-Davis, R ;

Reynolds, SH ;

Stevens, Y ;

Byers, B .

PLANT CELL, 2000, 12 (09) :1551-1567

← 1 2 3 4 5 →