Resisting potato cyst nematodes with resistance
Abstract
Potato cyst nematodes (PCN) are economically important pests with a worldwide distribution in all temperate regions where potatoes are grown. Because above ground symptoms are non-specific, and detection of cysts in the soil is determined by the intensity of sampling, infestations are frequently spread before they are recognised. PCN cysts are resilient and persistent; their cargo of eggs can remain viable for over two decades, and thus once introduced PCN are very difficult to eradicate. Various control methods have been proposed, with resistant varieties being a key environmentally friendly and effective component of an integrated management programme. Wild and landrace relatives of cultivated potato have provided a source of PCN resistance genes that have been used in breeding programmes with varying levels of success. Producing a PCN resistant variety requires concerted effort over many years before it reaches what can be the biggest hurdle—commercial acceptance. Recent advances in potato genomics have provided tools to rapidly map resistance genes and to develop molecular markers to aid selection during breeding. This review will focus on the translation of these opportunities into durably PCN resistant varieties.
Citation
Gartner , U , Hein , I , Brown , L H , Chen , X , Mantelin , S , Sharma , S K , Dandurand , L-M , Kuhl , J C , Jones , J T , Bryan , G J & Blok , V C 2021 , ' Resisting potato cyst nematodes with resistance ' , Frontiers in Plant Science , vol. 12 , 661194 . https://doi.org/10.3389/fpls.2021.661194
Publication
Frontiers in Plant Science
Status
Peer reviewed
ISSN
1664-462XType
Journal item
Description
This work was funded by the Scottish Government Rural and Environment Science and Analytical Services Division and the USDA NIFA 2015-69004-23634 project GLOBAL.Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.