Pyramiding BPH genes in rice maintains resistance against the brown planthopper under climate change.

Autor: Wang CL; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Luo PQ; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Hu FY; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Li Y; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Sung CL; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Kuang YH; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Lin SC; Department of Agronomy, National Taiwan University, Taipei, Taiwan., Yang ZW; Crop Improvement Division, Taoyuan District Agricultural Research and Extension Station, Ministry of Agriculture, Taoyuan City, Taiwan., Li CP; Crop Science Division, Taiwan Agricultural Research Institute, Ministry of Agriculture, Taichung City, Taiwan., Huang SH; Department of Plant Protection, Chiayi Agricultural Experiment Station, Taiwan Agricultural Research Institute, Ministry of Agriculture, Taichung City, Taiwan., Hechanova SL; Novel Gene Resources Laboratory, Strategic Innovation Platform, International Rice Research Institute, Makati, Philippines., Jena KK; Novel Gene Resources Laboratory, Strategic Innovation Platform, International Rice Research Institute, Makati, Philippines.; School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India., Hsieh CH; Department of Forestry and Nature Conservation, Chinese Culture University, Taipei, Taiwan., Chuang WP; Department of Agronomy, National Taiwan University, Taipei, Taiwan.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2024 Apr; Vol. 80 (4), pp. 1740-1750. Date of Electronic Publication: 2023 Dec 09.
DOI: 10.1002/ps.7902
Abstrakt: Background: Nilaparvata lugens (brown planthopper; BPH) is a significant rice pest in Asia, causing substantial yield losses. Pyramiding BPH resistance genes with diverse resistance traits into rice cultivars is an effective strategy for pest management. However, the response of pyramiding combinations to environmental changes remains unclear. To address this knowledge gap, we investigated three pyramiding rice lines (BPH2 + 32, BPH9 + 32, and BPH18 + 32) in the context of varying climate change conditions, ensuring sufficient N. lugens-rice interactions. Thus, we set three environmental conditions [30/25 °C (day/night) with 500 ppm CO 2 concentration, 32/27 °C (day/night) with 600 ppm CO 2 concentration, and 35/30 °C (day/night) with 1000 ppm CO 2 concentration].
Results: All three pyramiding rice lines maintained the insect resistant ability under the three environmental settings. In particular, the BPH18 + 32 rice line exhibited stronger antibiotic and antixenosis effects against N. lugens. In addition, BPH18 + 32 rice line had better shoot resilience under N. lugens infestation, whereas the performance of the other two selected pyramiding rice lines varied. Thus, although BPH2, BPH9, and BPH18 represent three alleles at the same locus, their resistance levels against N. lugens may vary under distinct climate change scenarios, as evidenced by the performance of N. lugens on the three pyramiding rice lines.
Conclusion: Our findings indicate that all three tested pyramiding rice lines maintained their insect resistance in the face of diverse climate change scenarios. However, these lines exhibited varied repellent responses and resilience capacities in response to climate change. Thus, the combination of pyramiding genes needs to be considered for future breeding programs. © 2023 Society of Chemical Industry.
(© 2023 Society of Chemical Industry.)
Databáze: MEDLINE
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