Modelling pollen-mediated gene flow in rice: risk assessment and management of transgene escape

Plant Biotechnology Journal
Jun RongBao-Rong Lu

Abstract

Fast development and commercialization of genetically modified plants have aroused concerns of transgene escape and its environmental consequences. A model that can effectively predict pollen-mediated gene flow (PMGF) is essential for assessing and managing risks from transgene escape. A pollen-trap method was used to measure the wind-borne pollen dispersal in cultivated rice and common wild rice, and effects of relative humidity, temperature and wind speed on pollen dispersal were estimated. A PMGF model was constructed based on the pollen dispersal pattern in rice, taking outcrossing rates of recipients and cross-compatibility between rice and its wild relatives into consideration. Published rice gene flow data were used to validate the model. Pollen density decreased in a simple exponential pattern with distances to the rice field. High relative humidity reduced pollen dispersal distances. Model simulation showed an increased PMGF frequency with the increase of pollen source size (the area of a rice field), but this effect levelled off with a large pollen-source size. Cross-compatibility is essential when modelling PMGF from rice to its wild relatives. The model fits the data well, including PMGF from rice to its wild relati...Continue Reading

References

Jul 2, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Norman C Ellstrand
Nov 7, 2003·Annals of Botany·Li Juan ChenBao-Rong Lu
May 8, 2004·Proceedings. Biological Sciences·P J WalklateJ B Sweet
Jun 4, 2004·Nature Biotechnology·Hepeng JiaSabine Louët
Sep 9, 2006·Ecology Letters·D A Andow, Claudia Zwahlen
May 11, 2007·Ecological Applications : a Publication of the Ecological Society of America·Anna KuparinenRobert B O'Hara
Oct 17, 2008·Nature·Jane Qiu
Sep 1, 1993·Trends in Ecology & Evolution·T J de JongP G Klinkhamer
Nov 1, 1994·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·D M Arias, L H Rieseberg
Jun 1, 1967·Evolution; International Journal of Organic Evolution·Hiko-Ichi Oka, Hiroko Morishima

❮ Previous
Next ❯

Citations

Sep 29, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Zhuxi JiangBao-Rong Lu
May 19, 2011·Yi chuan = Hereditas·Lei Zhang, Zhen Zhu
Nov 10, 2011·Plant Biotechnology Journal·Dominique Michaud
Jun 5, 2019·Ecology and Evolution·Teresa B De LeonWhitney Brim-DeForest

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.