Adaptation by the brown planthopper to resistant rice: A test of female-derived virulence and the role of yeast-like symbionts
| cg.contributor.affiliation | EcoLaVerna Integral Restoration Ecology | en |
| cg.contributor.affiliation | Universidad Católica del Maule | en |
| cg.contributor.affiliation | International Rice Research Institute | en |
| cg.contributor.affiliation | Institut de Génétique, Environnement et Protection des Plantes | en |
| cg.contributor.affiliation | University of California | en |
| cg.identifier.doi | https://doi.org/10.3390/insects12100908 | en |
| cg.issn | 2075-4450 | en |
| cg.issue | 10 | en |
| cg.journal | Insects | en |
| cg.volume | 12 | en |
| dc.contributor.author | Horgan, Finbarr G. | en |
| dc.contributor.author | Peñalver Cruz, Ainara | en |
| dc.contributor.author | Arida, Arriza | en |
| dc.contributor.author | Ferrater, Jedeliza B. | en |
| dc.contributor.author | Bernal, Carmencita C. | en |
| dc.date.accessioned | 2024-12-19T12:53:35Z | en |
| dc.date.available | 2024-12-19T12:53:35Z | en |
| dc.identifier.uri | https://hdl.handle.net/10568/164185 | |
| dc.title | Adaptation by the brown planthopper to resistant rice: A test of female-derived virulence and the role of yeast-like symbionts | en |
| dcterms.abstract | The adaptation by planthoppers to feed and develop on resistant rice is a challenge for pest management in Asia. We conducted a series of manipulative experiments with the brown planthopper (Nilaparvata lugens (Stål)) on the resistant rice variety IR62 (BPH3/BPH32 genes) to assess behavioral and bionomic changes in planthoppers exhibiting virulence adaptation. We also examined the potential role of yeast-like symbionts (YLS) in virulence adaptation by assessing progeny fitness (survival × reproduction) following controlled matings between virulent males or females and avirulent males or females, and by manipulating YLS densities in progeny through heat treatment. We found virulence-adapted planthoppers developed faster, grew larger, had adults that survived for longer, had female-biased progeny, and produced more eggs than non-selected planthoppers on the resistant variety. However, feeding capacity—as revealed through honeydew composition—remained inefficient on IR62, even after 20+ generations of exposure to the resistant host. Virulence was derived from both the male and female parents; however, females contributed more than males to progeny virulence. We found that YLS are essential for normal planthopper development and densities are highest in virulent nymphs feeding on the resistant host; however, we found only weak evidence that YLS densities contributed more to virulence. Virulence against IR62 in the brown planthopper, therefore, involves a complex of traits that encompass a series of behavioral, physiological, and genetic mechanisms, some of which are determined only by the female parent. | en |
| dcterms.accessRights | Open Access | |
| dcterms.available | 2021-10-06 | |
| dcterms.bibliographicCitation | Horgan, Finbarr G.; Peñalver Cruz, Ainara; Arida, Arriza; Ferrater, Jedeliza B. and Bernal, Carmencita C. 2021. Adaptation by the brown planthopper to resistant rice: A test of female-derived virulence and the role of yeast-like symbionts. Insects, Volume 12 no. 10 p. 908 | en |
| dcterms.issued | 2021-10-06 | |
| dcterms.language | en | |
| dcterms.license | CC-BY-4.0 | |
| dcterms.publisher | MDPI | en |
| dcterms.subject | insect science | en |
| dcterms.type | Journal Article |