2016年1月
Evolving ideas about genetics underlying insect virulence to plant resistance in rice-brown planthopper interactions
JOURNAL OF INSECT PHYSIOLOGY
- 巻
- 84
- 号
- 開始ページ
- 32
- 終了ページ
- 39
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.jinsphys.2015.12.001
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
Many plant-parasite interactions that include major plant resistance genes have subsequently been shown to exhibit features of gene-for-gene interactions between plant Resistance genes and parasite Avirulence genes. The brown planthopper (BPH) Nilaparvata lugens is an important pest of rice (Oryza sativa). Historically, major Resistance genes have played an important role in agriculture. As is common in gene-for-gene interactions, evolution of BPH virulence compromises the effectiveness of singly deployed resistance genes. It is therefore surprising that laboratory studies of BPH have supported the conclusion that virulence is conferred by changes in many genes rather than a change in a single gene, as is proposed by the gene-for-gene model. Here we review the behaviour, physiology and genetics of the BPH in the context of host plant resistance. A problem for genetic understanding has been the use of various insect populations that differ in frequencies of virulent genotypes. We show that the previously proposed polygenic inheritance of BPH virulence can be explained by the heterogeneity of parental populations. Genetic mapping of Avirulence genes indicates that virulence is a monogenic trait. These evolving concepts, which have brought the gene-for-gene model back into the picture, are accelerating our understanding of rice-BPH interactions at the molecular level. (C) 2015 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.jinsphys.2015.12.001
- ISSN : 0022-1910
- eISSN : 1879-1611
- PubMed ID : 26668110
- Web of Science ID : WOS:000370108800005