ISSN:
0192-253X
Keywords:
Epigenetic
;
paramutation
;
cosuppression
;
pattern elaboration
;
flower pigmentation
;
plant morphogenesis
;
Life and Medical Sciences
;
Genetics
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
Notes:
Developmental and physiological factors can impose heritable metastable changes on the plant genome, a fact that was established by maize geneticists during the 1950s and 1960s, largely through the efforts of R. Alexander Brink and Barbara McClintock. This paper describes a transgenic reporter system that monitors genomic impositions as changes in morphogenetically-determined flower color patterns. The observations reported here on the metastable properties of plant transgenes illustrate the proposals of Brink and McClintock that chromosomal impositions occur during normal development as ordered sequences of events which contribute to the elaboration of complex developmental patterns. The relationship between this process and some recent findings about the control of gene expression in transgenic plants is also discussed. © 1994 Wiley-Liss, Inc.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/dvg.1020150611
