Type: Chapter

Ensuring the genetic diversity of tomatoes


Andreas W. Ebert


Lawrence Kenyon

The World Vegetable Center

Publication date:

31 July 2016

ID: 9781838792794

E-Chapter format

£25.00 excluding tax
Request Permissions


This book chapter describes key issues regarding genetic diversity of tomatoes, including taxonomy and mating system. Figures on global ex situ conservation of tomato germplasm are provided and the world’s largest collection in the public domain, held by AVRDC – The World Vegetable Center, is described in some detail. This chapter also deals with the policy framework for the conservation, access and benefit-sharing mechanisms of plant genetic resources (PGR). It describes how the policy framework and stricter phytosanitary requirements affect the exchange and use of PGR. Ways to strengthen sharing of PGR for food and nutrition security and climate change adaptation are discussed.

Table of contents

1 Introduction: key issues relating to the genetic diversity of tomatoes
2 Taxonomy and mating system of tomato and its wild relatives
3 Conservation of tomato genetic resources worldwide
4 Policies affecting access to plant genetic resources
5 Issues affecting the exchange and use of plant genetic resources
6 Phytosanitary requirements for the exchange of plant genetic resources
7 Phytosanitary measures in practice: the case of solanaceous viroids
8 Ways to strengthen sharing of crop genetic resources
9 Summary and future trends
10 Where to look for further information
11 References