Sillo Fabiano
National Research Council, Institute for Sustainable Plant Protection, (CNR-IPSP), Torino, Italy.
Methods Mol Biol. 2022;2536:405-422. doi: 10.1007/978-1-0716-2517-0_23.
Population genetics allow to address fundamental questions about the biology of plant pathogens. By testing specific hypotheses, population genetics provide insights into the population genetic variability of pathogens across different geographical areas, time, and associated plant hosts, as well as on the structure and differentiation of populations, and on the possibility that a population is introduced and from where it has originated. In this chapter, basic concepts of population genetics are introduced, as well as the five evolutionary factors affecting populations, that is, mutations, recombination, variation in population size, gene flow, and natural selection. A step-by-step workflow, from sampling to data analysis, on how to perform a genetic analysis of natural populations of plant pathogens is discussed. Increased knowledge of the population biology of pathogens is pivotal to improve management strategies of diseases in agricultural and forest ecosystems.
群体遗传学有助于解决有关植物病原体生物学的基本问题。通过检验特定假设，群体遗传学能够深入了解病原体在不同地理区域、时间以及相关植物宿主中的群体遗传变异性，以及群体的结构与分化情况，还有群体是否被引入及其起源地的可能性。在本章中，将介绍群体遗传学的基本概念，以及影响群体的五个进化因素，即突变、重组、群体大小变化、基因流动和自然选择。还将讨论从采样到数据分析的逐步工作流程，介绍如何对植物病原体的自然群体进行遗传分析。增加对病原体群体生物学的了解对于改进农业和森林生态系统中病害的管理策略至关重要。
