|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Identification of a novel planthopper resistance gene from wild rice(Oryza rufipogon Griff.)显示文摘Rice planthoppers,including brown planthopper(BPH)and white-backed planthopper(WBPH),are the most destructive pests in Asian rice cultivation regions.Planthopper resistance genes that have been mapped and characterized advance our understanding of underlying resistance mechanisms and facilitate the breeding of resistant varieties,thereby contributing to an efficient pest management strategy.In this study,a novel resistance gene Bph38 derived from the wild rice species Oryza rufipogon Griff.was found to confer high resistance to BPH and WBPH.Conventional mapping was performed to identify regions associated with BPH and WBPH resistance,and two mapping efforts led to the same region on chromosome 4 flanked by markers RM16563 and RM16763.Bulked-segregant analysis and next-generation sequencing were performed using the same population to detect the resistance gene.Conventional mapping narrowed the region to a 12.3-Mb segment,and fine mapping using BC1 F2 recombinants identified a 79-kb segment flanked by markers YM112 and YM190.Near-isogenic lines(NILs)carrying Bph38 in the 9311(indica)and BR54(japonica)genetic backgrounds were developed by crossing and backcrossing with marker-assisted selection.The agronomic traits and BPH and WBPH resistance of the NILs were similar to those of the recurrent parents.Mandatory feeding and host-choice tests revealed that Bph38 showed both antibiotic and antixenotic effects in both insects,with stronger effects in indica-background lines.Further fine mapping and characterization of the major gene may result in map-based cloning of the gene and allow its application in breeding insectresistant rice varieties. | Meng Yang Jiebin Lin Ling Cheng Hailian Zhou Shu Chen Fang Liu Rongbai Li Yongfu Qiu | 2020 | The Crop Journal2020，8，6： | 3 |
| 2 | Balancing selection and wild gene pool contribute to resistance in global rice germplasm against planthopper显示文摘Interactions and co-evolution between plants and herbivorous insects are critically important in agriculture.Brown planthopper(BPH)is the most severe insect of rice,and the biotypes adapt to feed on different rice genotypes.Here,we present genomics analyses on 1,520 global rice germplasms for resistance to three BPH biotypes.Genome-wide association studies identified 3,502 single nucleotide polymorphisms(SNPs)and 59 loci associated with BPH resistance in rice.We cloned a previously unidentified gene Bph37 that confers resistance to BPH.The associated loci showed high nucleotide diversity.Genome-wide scans for trans-species polymorphisms revealed ancient balancing selection at the loci.The secondarily evolved insect biotypes II and III exhibited significantly higher virulence and overcame more rice varieties than the primary biotype I.In response,more SNPs and loci evolved in rice for resistance to biotypes II and III.Notably,three exceptional large regions with high SNP density and resistance-associated loci on chromosomes 4 and 6 appear distinct between the resistant and susceptible rice varieties.Surprisingly,these regions in resistant rice might have been retained from wild species Oryza nivara.Our findings expand the understanding of long-term interactions between rice and BPH and provide resistance genes and germplasm resources for breeding durable BPH-resistant rice varieties. | Cong Zhou Qian Zhang Yu Chen Jin Huang Qin Guo Yi Li Wensheng Wang Yongfu Qiu Wei Guan Jing Zhang Jianping Guo Shaojie Shi Di Wu Xiaohong Zheng Lingyun Nie Jiaoyan Tan Chaomei Huang Yinhua Ma Fang Yang Xiqin Fu Bo Du Lili Zhu Rongzhi Chen Zhikang Li Longping Yuan Guangcun He | 2021 | Journal of Integrative Plant Biology2021，63，10： | 2 |
| 3 | Empirical Testing of the Reference-Price Effect of Buy-Now Prices in Internet Auctions显示文摘 | Peter T.L. Popkowski Leszczyc Chun Qiu Yongfu He | 2009 | Journal of Retailing2009，，2： | 1 |
| 4 | Nonlinear photoluminescence of ZnO/ZnS nanotetrapods显示文摘 | Liao Yu Xue-Feng Yu Yongfu Qiu Yijian Chen Shihe Yang | 2008 | Chemical Physics Letters2008，，4： | 1 |
| 5 | Effects of the structure of ceria on the activity of gold/cerla catalysts for the oxidation of carbon monoxide and benzene 显示文摘 | Lai Suk-Yin Qiu Yongfu Wang Shuiju | 2006 | Journal of Catalysis2006，237，： | 1 |
| 6 | Damping behaviors of magnesium matrix composites reinforced with Cucoated and uncoated SiC particulates 显示文摘 | Gu Jinhai Zhang Xiaonong Qiu Yongfu | 2005 | Composites Science and Technology2005，65，1112： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员