English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Resistance ( R)  genes usually compete in a coevolutionary arms race with reciprocal effectors to confer strain‐specific resistance to pathogens or herbivorous insects. Here, we investigate the specificity of  SLI1 , a recently identified  R  gene in Arabidopsis that encodes a small heat shock‐like protein involved in resistance to  Myzus persicae  aphids. In a panel with several aphid and whitefly species, SLI1 compromised reproductive rates of three species: the tobacco aphid  M. persicae nicotianae , the cabbage aphid  Brevicoryne brassicae  and the cabbage whitefly  Aleyrodes proletella . Electrical penetration graph recording of aphid behaviour, revealed shorter salivations and a 3‐to‐5‐fold increase in phloem feeding on  sli1  loss‐of‐function plants. The mustard aphid  Lipaphis erysimi  and  Bemisia tabaci  whitefly were not affected by SLI1. Unlike the other two aphid species,  L. erysimi  exhibited repetitive salivations preceding successful phloem feeding, indicating a role of salivary effectors in overcoming SLI1‐mediated resistance. Microscopic characterization showed that SLI1 proteins localize in the sieve tubes of virtually all above‐ and below‐ground tissues and co‐localize with the aphid stylet tip after penetration of the sieve element plasma membrane. These observations reveal an unconventional  R  gene that escapes the paradigm of strain specificity and confers broad‐spectrum quantitative resistance to phloem‐feeding insects.

SLI1 confers broad‐spectrum resistance to phloem‐feeding insects