Gene silencing in potato: allelic differences and effect of ploidy

Gene silencing in potato: allelic differences and effect of ploidy Silencing of genes is mostly studied in diploid, homozygous, self-fertile and sexually propagated species. However, conclusions drawn for these species are not always applicable to crops like potato, which is an autotetraploid, highly heterozygous, vegetatively propagated species. Factors influencing the level of silencing in potato are discussed, with emphasis on inhibition of the granule-bound starch synthase I (GBSSI) gene. Type of construct, number of integrated T-DNA copies, structural arrangement of the T-DNA locus, integration site, target tissue and genetic background are important factors for all plant species. Ploidy level and multiple allelism are factors deserving special attention when the efficiency of silencing of endogenous genes is studied in polyploid, heterozygous species such as potato. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Gene silencing in potato: allelic differences and effect of ploidy

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Publisher
Springer Journals
Copyright
Copyright © 2000 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1006476621946
Publisher site
See Article on Publisher Site

Abstract

Silencing of genes is mostly studied in diploid, homozygous, self-fertile and sexually propagated species. However, conclusions drawn for these species are not always applicable to crops like potato, which is an autotetraploid, highly heterozygous, vegetatively propagated species. Factors influencing the level of silencing in potato are discussed, with emphasis on inhibition of the granule-bound starch synthase I (GBSSI) gene. Type of construct, number of integrated T-DNA copies, structural arrangement of the T-DNA locus, integration site, target tissue and genetic background are important factors for all plant species. Ploidy level and multiple allelism are factors deserving special attention when the efficiency of silencing of endogenous genes is studied in polyploid, heterozygous species such as potato.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 16, 2004

References

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