Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper

Abstract This study compares the effects of temperature (constant at 15, 20, 25, 30 and 35 °C) on adult longevity, oviposition, and nymph development of the brown planthopper, Nilaparvata lugens, on susceptible and resistant rice varieties. The resistant variety contained the BPH32 gene. In our expe...

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Autores principales:	Finbarr G. Horgan, Arriza Arida, Goli Ardestani, Maria Liberty P. Almazan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd79c1e946ae4beabf22c2a1f7b24857
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spelling	oai:doaj.org-article:dd79c1e946ae4beabf22c2a1f7b248572021-12-02T11:46:07ZElevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper10.1038/s41598-020-80704-42045-2322https://doaj.org/article/dd79c1e946ae4beabf22c2a1f7b248572021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80704-4https://doaj.org/toc/2045-2322Abstract This study compares the effects of temperature (constant at 15, 20, 25, 30 and 35 °C) on adult longevity, oviposition, and nymph development of the brown planthopper, Nilaparvata lugens, on susceptible and resistant rice varieties. The resistant variety contained the BPH32 gene. In our experiments, nymphs failed to develop to adults at 15, 20 and 35 °C on either variety. Host resistance had its greatest effect in reducing adult survival at 20–25 °C and its greatest effect in reducing nymph weight gain at 25 °C. This corresponded with optimal temperatures for adult survival (20–25 °C) and nymph development (25–30 °C). At 25 and 30 °C, adult females achieved up to three oviposition cycles on the susceptible variety, but only one cycle on the resistant variety. Maximum egg-laying occurred at 30 °C due to larger numbers of egg batches produced during the first oviposition cycle on both the susceptible and resistant varieties, and larger batches during the second and third oviposition cycles on the susceptible variety; however, resistance had its greatest effect in reducing fecundity at 25 °C. This revealed a mismatch between the optimal temperatures for resistance and for egg production in immigrating females. Increasing global temperatures could reduce the effectiveness of anti-herbivore resistance in rice and other crops where such mismatches occur.Finbarr G. HorganArriza AridaGoli ArdestaniMaria Liberty P. AlmazanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Finbarr G. Horgan Arriza Arida Goli Ardestani Maria Liberty P. Almazan Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
description	Abstract This study compares the effects of temperature (constant at 15, 20, 25, 30 and 35 °C) on adult longevity, oviposition, and nymph development of the brown planthopper, Nilaparvata lugens, on susceptible and resistant rice varieties. The resistant variety contained the BPH32 gene. In our experiments, nymphs failed to develop to adults at 15, 20 and 35 °C on either variety. Host resistance had its greatest effect in reducing adult survival at 20–25 °C and its greatest effect in reducing nymph weight gain at 25 °C. This corresponded with optimal temperatures for adult survival (20–25 °C) and nymph development (25–30 °C). At 25 and 30 °C, adult females achieved up to three oviposition cycles on the susceptible variety, but only one cycle on the resistant variety. Maximum egg-laying occurred at 30 °C due to larger numbers of egg batches produced during the first oviposition cycle on both the susceptible and resistant varieties, and larger batches during the second and third oviposition cycles on the susceptible variety; however, resistance had its greatest effect in reducing fecundity at 25 °C. This revealed a mismatch between the optimal temperatures for resistance and for egg production in immigrating females. Increasing global temperatures could reduce the effectiveness of anti-herbivore resistance in rice and other crops where such mismatches occur.
format	article
author	Finbarr G. Horgan Arriza Arida Goli Ardestani Maria Liberty P. Almazan
author_facet	Finbarr G. Horgan Arriza Arida Goli Ardestani Maria Liberty P. Almazan
author_sort	Finbarr G. Horgan
title	Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
title_short	Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
title_full	Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
title_fullStr	Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
title_full_unstemmed	Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
title_sort	elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dd79c1e946ae4beabf22c2a1f7b24857
work_keys_str_mv	AT finbarrghorgan elevatedtemperaturesdiminishtheeffectsofahighlyresistantricevarietyonthebrownplanthopper AT arrizaarida elevatedtemperaturesdiminishtheeffectsofahighlyresistantricevarietyonthebrownplanthopper AT goliardestani elevatedtemperaturesdiminishtheeffectsofahighlyresistantricevarietyonthebrownplanthopper AT marialibertypalmazan elevatedtemperaturesdiminishtheeffectsofahighlyresistantricevarietyonthebrownplanthopper
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Elevated temperatures diminish the effects of a highly resistant rice variety on the brown planthopper

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