气候变化领域集成服务门户(CCPortal): Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures

CCPortal

DOI	10.1094/PHYTO-04-23-0119-R
	Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures
	Koeda, Sota; Kitawaki, Arata
发表日期	2024
ISSN	0031-949X
EISSN	1943-7684
起始页码	114
结束页码	1
卷号	114 期号:1
英文摘要	The global dissemination of the Israel (IL) and mild (Mld) strains of tomato yellow leaf curl virus (TYLCV) (family Geminiviridae, genus Begomovirus) is a major threat to tomato production in many regions worldwide. The use of resistant hybrid cultivars bearing the dominant resistance genes Ty-1, Ty-3, and Ty-3a has become a common practice for controlling tomato yellow leaf curl disease (TYLCD) caused by TYLCV. However, TYLCD symptoms have been sporadically observed in resistant cultivars grown in seasons when temperatures are high. In this study, we used TYLCV-resistant cultivars with confirmed presence of Ty-1, which were determined using newly developed allele-specific markers based on polymorphisms within the locus. These Ty-1-bearing resistant tomato plants and susceptible plants were infected with TYLCV and grown at moderate or high temperatures. Under high-temperature conditions, the Ty-1-bearing tomato cultivar Momotaro Hope (MH) infected with TYLCV-IL had severe TYLCD symptoms, which were almost equivalent to those of the susceptible cultivar. However, MH plants infected with TYLCV-Mld were symptomless or had slight symptoms under the same temperature condition. The quantitative analysis of the TYLCV-IL viral DNA content revealed a correlation between symptom development and viral DNA accumulation. Furthermore, under high-temperature conditions, TYLCV-IL caused severe symptoms in multiple commercial tomato cultivars with different genetic backgrounds. Our study provided the scientific evidence for the experientially known phenomenon by tomato growers, and it is anticipated that global warming, associated with climate change, could potentially disrupt the management of TYLCV in tomato plants mediated by the Ty-1 gene.
英文关键词	begomovirus; geminivirus; RNA-dependent RNA polymerase (RDR); Ty-1/Ty-3/Ty-3a; TYLCV; Ty-resistance gene
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001161046400001
来源期刊	PHYTOPATHOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300201
作者单位	Kindai University (Kinki University)
推荐引用方式 GB/T 7714	Koeda, Sota,Kitawaki, Arata. Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures[J],2024,114(1).
APA	Koeda, Sota,&Kitawaki, Arata.(2024).Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures.PHYTOPATHOLOGY,114(1).
MLA	Koeda, Sota,et al."Breakdown of Ty-1-Based Resistance to Tomato Yellow Leaf Curl Virus in Tomato Plants at High Temperatures".PHYTOPATHOLOGY 114.1(2024).