Simple to complex: Modelling crop pollen-mediated gene flow

被引:74
|
作者
Beckie, Hugh J. [1 ]
Hall, Linda M. [2 ]
机构
[1] Agr & Agri Food Canada, Saskatoon, SK S7N 0X2, Canada
[2] Univ Alberta, Edmonton, AB T6G 2P5, Canada
关键词
Adventitious presence; Gene flow; Genetically modified crop; Oilseed rape; Maize; Wheat;
D O I
10.1016/j.plantsci.2008.05.021
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Coexistence among genetically modified (GM) and non-GM cropping systems and identity preservation at the field level are increasingly important issues in many countries. Different types of pollen-mediated gene flow (cross-fertilization) models have been released during the past decade, primarily as a decision-support tool to achieve the European Union (EU) 0.9% GM adventitious presence (AP) labelling threshold for food and feed. We review key empirical or mechanistic models for four diverse crop types-canola or oilseed rape (OSR) (Brassica napus L.), maize (Zea mays L.), wheat (Triticum aestivum L.), and creeping bentgrass (Agrostis stolonifera L.). Their strengths, weaknesses, relevance, and utility in simulating pollen-mediated gene flow are examined. Many empirical models simulate gene flow well, although their utility is often restricted by datasets with limited environmental variability or spatial scale. Few mechanistic models have been developed, reflecting the challenge in accurately simulating pollen-mediated gene flow by wind or insects: such models have not been validated for commercial field scenarios. Many models tend to provide upper-end or worst-case outcrossing predictions and management recommendations, either because of experimental design underlying datasets, biological and environmental stochasticity, or chosen statistical analysis. Both experimental results and modelling predictions of outcrossing in OSR, maize, and wheat reveal that isolation distance or a pollen barrier (buffer zone) generally is only recommended between small grain maize fields (ca. <5 ha) to maintain field-average AP due to pollen-mediated gene flow below the EU threshold. Recent advances in modelling pollen-mediated gene flow in commercial fields are encouraging, but simulating gene flow in heterogeneous landscapes remains an elusive goal. Moreover, practical, user-friendly decision-support tools are needed to inform and guide farmers in implementing coexistence measures. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:615 / 628
页数:14
相关论文
共 50 条
  • [31] Pollen-mediated gene flow in a small, fragmented natural population of Fagus crenata
    Hanaoka, So
    Yuzurihara, Jungo
    Asuka, Yamashita
    Tomaru, Nobuhiro
    Tsumura, Yoshihiko
    Kakubari, Yoshitaka
    Mukai, Yuzuru
    CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 2007, 85 (04): : 404 - 413
  • [32] To self, or not to self ... A review of outcrossing and pollen-mediated gene flow in neotropical trees
    Ward, M
    Dick, CW
    Gribel, R
    Lowe, AJ
    HEREDITY, 2005, 95 (04) : 246 - 254
  • [33] Pollen-Mediated Gene Flow in Commercial Fields of Spring Wheat in Western Canada
    Beckie, Hugh J.
    Warwick, Suzanne I.
    Sauder, Connie A.
    Hall, Linda M.
    Harker, K. Neil
    Lozinski, Chris
    CROP SCIENCE, 2011, 51 (01) : 306 - 313
  • [34] To self, or not to self… A review of outcrossing and pollen-mediated gene flow in neotropical trees
    M Ward
    C W Dick
    R Gribel
    A J Lowe
    Heredity, 2005, 95 : 246 - 254
  • [35] Field performance and pollen-mediated gene flow of transgenic tall fescue plants
    Wang, Zeng-Yu
    Lawrence, Robert
    Bell, Jeremey
    Hopkins, Andrew
    Scott, Me Luann
    IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-ANIMAL, 2004, 40 : 66A - 66A
  • [36] Low crop plant population densities promote pollen-mediated gene flow in spring wheat (Triticum aestivum L.)
    Christian J. Willenborg
    Anita L. Brûlé-Babel
    Rene C. Van Acker
    Transgenic Research, 2009, 18 : 841 - 854
  • [37] Low crop plant population densities promote pollen-mediated gene flow in spring wheat (Triticum aestivum L.)
    Willenborg, Christian J.
    Brule-Babel, Anita L.
    Van Acker, Rene C.
    TRANSGENIC RESEARCH, 2009, 18 (06) : 841 - 854
  • [38] Low risk of pollen-mediated gene flow in transgenic plants under greenhouse conditions
    Kim, Deuk-Su
    Song, Ilchan
    Ko, Kisung
    HORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2018, 59 (05) : 723 - 728
  • [39] Pollen-mediated gene flow from transgenic cotton is constrained by physical isolation measures
    Shuo Yan
    Weilong Zhu
    Boyu Zhang
    Xinmi Zhang
    Jialin Zhu
    Jizhe Shi
    Pengxiang Wu
    Fengming Wu
    Xiangrui Li
    Qingwen Zhang
    Xiaoxia Liu
    Scientific Reports, 8
  • [40] Prediction of Pollen-Mediated Gene Flow Between Fields of Red Clover (Trifolium pratense)
    Damgaard, Christian
    Simonsen, Vibeke
    Osborne, Juliet L.
    ENVIRONMENTAL MODELING & ASSESSMENT, 2008, 13 (04) : 483 - 490