Yun-Hung Kuang1, Yu-Fu Fang1, Shau-Ching Lin1, Shin-Fu Tsai1, Zhi-Wei Yang2, Charng-Pei Li3, Shou-Horng Huang4, Sherry Lou Hechanova5, Kshirod K Jena5,6, Wen-Po Chuang7. 1. Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan. 2. Crop Improvement Division, Taoyuan District Agricultural Research and Extension Station, Council of Agriculture, Taoyuan City, 32745, Taiwan. 3. Crop Science Division, Taiwan Agricultural Research Institute, Council of Agriculture, Taichung City, 41362, Taiwan. 4. Department of Plant Protection, Chiayi Agricultural Experiment Station, Taiwan Agricultural Research Institute, Council of Agriculture, Chiayi, 60044, Taiwan. 5. Novel Gene Resources Laboratory, Strategic Innovation Platform, International Rice Research Institute, DAPO Box 7777, Metro Manila, Los Baños, Philippines. 6. School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, 751024, India. 7. Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan. wenpo@ntu.edu.tw.
Abstract
BACKGROUND: The impact of climate change on insect resistance genes is elusive. Hence, we investigated the responses of rice near-isogenic lines (NILs) that carry resistance genes against brown planthopper (BPH) under different environmental conditions. RESULTS: We tested these NILs under three environmental settings (the atmospheric temperature with corresponding carbon dioxide at the ambient, year 2050 and year 2100) based on the Intergovernmental Panel on Climate Change prediction. Comparing between different environments, two of nine NILs that carried a single BPH-resistant gene maintained their resistance under the environmental changes, whereas two of three NILs showed gene pyramiding with two maintained BPH resistance genes despite the environmental changes. In addition, two NILs (NIL-BPH17 and NIL-BPH20) were examined in their antibiosis and antixenosis effects under these environmental changes. BPH showed different responses to these two NILs, where the inhibitory effect of NIL-BPH17 on the BPH growth and development was unaffected, while NIL-BPH20 may have lost its resistance during the environmental changes. CONCLUSION: Our results indicate that BPH resistance genes could be affected by climate change. NIL-BPH17 has a strong inhibitory effect on BPH feeding on phloem and would be unaffected by environmental changes, while NIL-BPH20 would lose its ability during the environmental changes.
BACKGROUND: The impact of climate change on insect resistance genpan>es is elusive. Henpan>ce, we investigated the responses of rice near-isogenic lines (NILs) that carry resistance genes against brown planthopper (BPH) under different environmental conditions. RESULTS: We tested these NILs under three environmental settings (the atmospheric temperature with corresponding carbon dioxide at the ambient, year 2050 and year 2100) based on the Intergovernmental Panel on Climate Change prediction. Comparing between different environments, two of nine NILs that carried a single BPH-resistant gene maintained their resistance under the environmental changes, whereas two of three NILs showed gene pyramiding with two maintained BPH resistance genes despite the environmental changes. In addition, two NILs (NIL-BPH17 and NIL-BPH20) were examined in their antibiosis and antixenosis effects under these environmental changes. BPH showed different responses to these two NILs, where the inhibitory effect of NIL-BPH17 on the BPH growth and development was unaffected, while NIL-BPH20 may have lost its resistance during the environmental changes. CONCLUSION: Our results indicate that BPH resistance genes could be affected by climate change. NIL-BPH17 has a strong inhibitory effect on BPH feeding on phloem and would be unaffected by environmental changes, while NIL-BPH20 would lose its ability during the environmental changes.
Authors: Curtis A Deutsch; Joshua J Tewksbury; Michelle Tigchelaar; David S Battisti; Scott C Merrill; Raymond B Huey; Rosamond L Naylor Journal: Science Date: 2018-08-31 Impact factor: 47.728
Authors: Myles R Allen; David J Frame; Chris Huntingford; Chris D Jones; Jason A Lowe; Malte Meinshausen; Nicolai Meinshausen Journal: Nature Date: 2009-04-30 Impact factor: 49.962