In Chapter 1 we started to look at the extraordinary wealth of genetic information that is present in every individual, and to explore how some of this information can be accessed and used in ecological studies. We will build on this foundation by looking in more detail at some of the properties of the genetic markers that are used in molecular ecology. We will start with an overview of the different genomes, because the use and interpretation of all markers will be influenced by the way in which they are inherited. The second half of the chapter will be an overview of those molecular markers that are most commonly used in ecology. After reading this chapter you should understand enough about different molecular markers to suggest which would be applied most appropriately to general research questions.
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