Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables
Abstract The diamondback moth, Plutella xylostella, is an important agricultural pest that severely damages cruciferous vegetables. Although previously considered a threat only to Brassica species, P. xylostella has been observed to feed on noncruciferous vegetables. Here, we established a populatio...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-07-01
|
| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.7804 |
| _version_ | 1818456643888742400 |
|---|---|
| author | Fei‐Ying Yang Jun‐Hui Chen Qian‐Qian Ruan Bei‐Bei Wang Lu Jiao Qing‐Xuan Qiao Wei‐Yi He Min‐Sheng You |
| author_facet | Fei‐Ying Yang Jun‐Hui Chen Qian‐Qian Ruan Bei‐Bei Wang Lu Jiao Qing‐Xuan Qiao Wei‐Yi He Min‐Sheng You |
| author_sort | Fei‐Ying Yang |
| collection | DOAJ |
| description | Abstract The diamondback moth, Plutella xylostella, is an important agricultural pest that severely damages cruciferous vegetables. Although previously considered a threat only to Brassica species, P. xylostella has been observed to feed on noncruciferous vegetables. Here, we established a population of P. xylostella on the pea Pisum sativum (PxP population). We compared this PxP population's performance on the pea host plant to a population (PxR) reared on the original host plant radish (Raphanus sativus) for several generations using an age‐stage, two‐sex life table and analyzed the correlations between different fitness parameters. In the 1st generation of the PxP population, survival rate of immature stage was 17%, while the survival rate of PxR was 68%; the duration of the 4th larval instar (5.30 d) and mortality (25%) of this generation were significantly longer (2.8 d) and higher (1%) than that of PxR, respectively (both p < .001). Upon long‐term acclimation, the PxP fitness improved significantly, especially that the survival rate of immature stages increased to approximately 60% in the 15th, 30th, and 45th generations. However, PxP feeding on pea exhibited poorer fitness with longer larval developmental time, shorter total life span, lighter pupa, and lower fecundity in different generations compared with PxP feeding on radish. PxP feeding on pea also showed a significantly lower intrinsic rate of increase (r), net reproduction rate (R0), finite increase rate (λ), and longer mean generation time (T) than PxP feeding on radish in all generations tested. Significant positive correlations were observed between pupal weight and female fecundity in pea‐fed populations, and between female longevity and female fecundity in pea‐fed and radish‐fed populations. Our findings suggest that P. xylostella adaptation to pea does not improve overall fitness compared with the original host radish, making pea a marginal host for P. xylostella. |
| first_indexed | 2024-12-14T22:29:56Z |
| format | Article |
| id | doaj.art-dd60685c0d3e4ae0a45d11c4842c085b |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-14T22:29:56Z |
| publishDate | 2021-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-dd60685c0d3e4ae0a45d11c4842c085b2022-12-21T22:45:16ZengWileyEcology and Evolution2045-77582021-07-0111149765977510.1002/ece3.7804Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tablesFei‐Ying Yang0Jun‐Hui Chen1Qian‐Qian Ruan2Bei‐Bei Wang3Lu Jiao4Qing‐Xuan Qiao5Wei‐Yi He6Min‐Sheng You7State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaInstitute of Microbiology Jiangxi Academy of Sciences Nanchang ChinaXiaoshan Agricultural Technology Extension Center Hangzhou ChinaState Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaState Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaState Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaState Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaState Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou ChinaAbstract The diamondback moth, Plutella xylostella, is an important agricultural pest that severely damages cruciferous vegetables. Although previously considered a threat only to Brassica species, P. xylostella has been observed to feed on noncruciferous vegetables. Here, we established a population of P. xylostella on the pea Pisum sativum (PxP population). We compared this PxP population's performance on the pea host plant to a population (PxR) reared on the original host plant radish (Raphanus sativus) for several generations using an age‐stage, two‐sex life table and analyzed the correlations between different fitness parameters. In the 1st generation of the PxP population, survival rate of immature stage was 17%, while the survival rate of PxR was 68%; the duration of the 4th larval instar (5.30 d) and mortality (25%) of this generation were significantly longer (2.8 d) and higher (1%) than that of PxR, respectively (both p < .001). Upon long‐term acclimation, the PxP fitness improved significantly, especially that the survival rate of immature stages increased to approximately 60% in the 15th, 30th, and 45th generations. However, PxP feeding on pea exhibited poorer fitness with longer larval developmental time, shorter total life span, lighter pupa, and lower fecundity in different generations compared with PxP feeding on radish. PxP feeding on pea also showed a significantly lower intrinsic rate of increase (r), net reproduction rate (R0), finite increase rate (λ), and longer mean generation time (T) than PxP feeding on radish in all generations tested. Significant positive correlations were observed between pupal weight and female fecundity in pea‐fed populations, and between female longevity and female fecundity in pea‐fed and radish‐fed populations. Our findings suggest that P. xylostella adaptation to pea does not improve overall fitness compared with the original host radish, making pea a marginal host for P. xylostella.https://doi.org/10.1002/ece3.7804adaptationdiamondback mothfitnesshost shiftpearadish |
| spellingShingle | Fei‐Ying Yang Jun‐Hui Chen Qian‐Qian Ruan Bei‐Bei Wang Lu Jiao Qing‐Xuan Qiao Wei‐Yi He Min‐Sheng You Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables Ecology and Evolution adaptation diamondback moth fitness host shift pea radish |
| title | Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables |
| title_full | Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables |
| title_fullStr | Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables |
| title_full_unstemmed | Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables |
| title_short | Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables |
| title_sort | fitness comparison of plutella xylostella on original and marginal hosts using age stage two sex life tables |
| topic | adaptation diamondback moth fitness host shift pea radish |
| url | https://doi.org/10.1002/ece3.7804 |
| work_keys_str_mv | AT feiyingyang fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT junhuichen fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT qianqianruan fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT beibeiwang fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT lujiao fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT qingxuanqiao fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT weiyihe fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables AT minshengyou fitnesscomparisonofplutellaxylostellaonoriginalandmarginalhostsusingagestagetwosexlifetables |