TY - CHAP
T1 - Fitness and Ecophysiological Cost of Metabolic Herbicide Resistance
AU - Keshtkar, Eshagh
AU - Beffa, Roland
AU - Kudsk, Per
N1 - Publisher Copyright:
© 2025 by John Wiley & Sons, Inc. All rights reserved.
PY - 2025/1/1
Y1 - 2025/1/1
N2 - This chapter provides a comprehensive overview of key scientific terms related to plant fitness and delves into the concept of fitness in herbicide-resistant weed species, which may manifest as positive, negative (commonly referred to as the herbicide-resistant fitness cost), or neutral effects. It explores the underlying causes of fitness costs in resistant weeds and outlines methods for assessing their fitness both directly and indirectly. Critical challenges in fitness studies, such as uncontrolled genetic backgrounds, limited multigenerational data, and the absence of competitive assessments, are thoroughly analyzed. Additionally, this chapter examines the reversibility of non-target-site resistance (NTSR), particularly metabolism-based resistance, and its broader implications for weed management. Finally, the fitness dynamics of metabolism-based resistance mechanisms, with a specific focus on Lolium rigidum and Alopecurus myosuroides, is discussed in the context of extensive research on the costs and benefits associated with such resistance.
AB - This chapter provides a comprehensive overview of key scientific terms related to plant fitness and delves into the concept of fitness in herbicide-resistant weed species, which may manifest as positive, negative (commonly referred to as the herbicide-resistant fitness cost), or neutral effects. It explores the underlying causes of fitness costs in resistant weeds and outlines methods for assessing their fitness both directly and indirectly. Critical challenges in fitness studies, such as uncontrolled genetic backgrounds, limited multigenerational data, and the absence of competitive assessments, are thoroughly analyzed. Additionally, this chapter examines the reversibility of non-target-site resistance (NTSR), particularly metabolism-based resistance, and its broader implications for weed management. Finally, the fitness dynamics of metabolism-based resistance mechanisms, with a specific focus on Lolium rigidum and Alopecurus myosuroides, is discussed in the context of extensive research on the costs and benefits associated with such resistance.
KW - Alopecurus myosuroides
KW - annual ryegrass
KW - black grass
KW - fitness costs
KW - herbicide resistance
KW - Lolium rigidum
KW - measuring plant fitness
KW - metabolism-based resistance
KW - non-target-site resistance (NTSR)
KW - weed management
UR - https://www.scopus.com/pages/publications/105023006996
U2 - 10.1002/9781119686699.ch12
DO - 10.1002/9781119686699.ch12
M3 - Book chapter
AN - SCOPUS:105023006996
SN - 9781119686644
SP - 233
EP - 263
BT - Resistance in Weeds from Herbicide Metabolism
PB - Wiley-Interscience
ER -