Skip to main content
padlock icon - secure page this page is secure

Impact of glyphosate tolerance gene on seed quality of transgenic bentgrass

Buy Article:

$35.00 + tax (Refund Policy)

There is a hypothetical risk that the glyphosate tolerance gene (CP4 EPSPS) may increase seed viability and vigour in transgenic glyphosate tolerant creeping bentgrass (GTCB) (Agrostis stolonifera L.), consequently increasing its persistence. This study was conducted to examine the impact of the CP4 EPSPS gene on seed viability, vigour, longevity, and germination energy of GTCB. Two GTCB events, ASR365 and ASR368, were tested under four germination environments: (1) standard germination test (SGT = 15/25°C for 28d), (2) Suboptimal temperature germination test (SubGT = 14°C for 28d), (3) Supra-optimal temperature germination test (SupraGT = 32°C for 28d) and (4) accelerated aging test (AAT = 45°C for 30 h). Potential gene effects were evaluated by comparing the stress effects of low and high temperatures induced by the SubGT, SupraGT and AAT environments on resistant (RR) and susceptible (RS) progeny within each transgenic event; and by comparing the percentage of RR progeny from the SGT to the percentage of RR progeny from stress environments (i.e., SubGT, SupraGT and AAT). Conventional cultivars of creeping bentgrass, 'SR1020', 'Backspin', and a dryland bentgrass, 'Highland' (A. castellana) were included for comparative purposes. The study was repeated twice. Under all germination environments used in the study, the glyphosate tolerance gene did not provide superior viability, vigour, or longevity to the GTCB. In a few cases, the high vigour plants within the resistant progeny showed better germination than the low vigour plants, but this was attributed to seed vigour effects rather than gene effect.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: July 1, 2009

More about this publication?
  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Membership Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more