In the UK, scientists at the James Hatton Institute are looking for ways to help the potato industry fight a dangerous crop pest.
Potato cyst-forming nematodes, in particular species Pale GloboderaIn recent decades, have been spreading steadily throughout the UK, creating significant threats to the sustainability of the potato industry, especially seed potatoes.
Despite the adoption of both legislative and agronomic countermeasures (primarily rotation in the use of nematicides), the spread of nematodes Pale Globodera The industry is worried about the lack of resistant varieties with suitable agronomic properties.
The loss of cyst-forming nematode-free lands at current growth rates of pest populations can significantly reduce or even destroy, for example, the Scottish seed-growing potato industry within 30 years.
From the point of view of breeding, the most effective way to control nematodes and reduce further loss of sown area is to accelerate the introduction and turnover of potato varieties with a high and stable level of resistance.
James Hutton Institute employees work with JHL biotechnology breeders using breeding lines containing resistance introgressed from Solanum tuberosum Group andigena и S. vernei.
The goal is to develop highly diagnostic markers for selection using markers (MAS) from the analysis of next-generation sequencing data sets (NGS) obtained using modern genotyping technologies such as dRenSeq (based on resistance gene homologues) and genotyping by sequencing ( GBS).
Durability and effectiveness in relation to introgressive resistances is evaluated on various samples of nematodes from the Hatton Institute's collection.
Scientists intend to obtain additional and new sources of resistance from wild potato species, currently mapping resistance to G. pallida в S. multidissectum и S. spegazzinii in order to introduce these resistances.
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