干旱区生态环境知识资源中心(Arid): Investigation of Two QTL Conferring Seedling Resistance to Fusarium Crown Rot in Barley on Reducing Grain Yield Loss under Field Environments

Arid

DOI	10.3390/agronomy12061282
	Investigation of Two QTL Conferring Seedling Resistance to Fusarium Crown Rot in Barley on Reducing Grain Yield Loss under Field Environments
	Zheng, Zhi; Powell, Jonathan; Gao, Shang; Percy, Cassandra; Kelly, Alison; Macdonald, Bethany; Zhou, Meixue; Davies, Philip; Liu, Chunji
通讯作者	Liu, CJ
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2022
卷号	12 期号:6
英文摘要	Fusarium crown rot (FCR) is one of the most damaging cereal diseases in semi-arid regions worldwide. Genetic studies on FCR resistance have mainly focused on disease symptoms measured by the browning of either leaf sheaths in seedlings or stems of mature plants. Two major QTLs conferring FCR resistance in barley, Qcsr.cpi-1H and Qcrs.cpi-4H, were previously identified in the growth room. They could explain up to 33.4 and 45.3% of phenotypic variance, respectively. This is the first study where the possible effects of FCR-resistant loci identified in the previous studies based on seedling assay are tested for their abilities to reduce grain yield loss. Near isogenic lines (NILs) and backcross (BC) lines targeting these two loci were assessed in the 2017 and 2018 crop seasons. Results from the NILs showed that the presence of a resistance allele at either the 1HL or 4HL locus reduced grain yield loss by an average of 12.0% and 10.7%, respectively. Grain yields of the top BC lines containing resistance alleles at both loci were 34.4% higher than the average of the commercial varieties under FCR inoculation. These lines will be highly valuable in breeding barley varieties with enhanced resistance to FCR.
英文关键词	Fusarium crown rot host resistance barley field assessment
类型	Article
语种	英语
开放获取类型	gold, Green Published, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000819625900001
WOS关键词	ESTIMATING DISEASE LOSSES ; NEAR-ISOGENIC LINES ; MAJOR QTL ; WHEAT SEEDLINGS ; WINTER-WHEAT ; BREAD WHEAT ; PSEUDOGRAMINEARUM ; GRAMINEARUM ; SEVERITY ; ROOT
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391752
推荐引用方式 GB/T 7714	Zheng, Zhi,Powell, Jonathan,Gao, Shang,et al. Investigation of Two QTL Conferring Seedling Resistance to Fusarium Crown Rot in Barley on Reducing Grain Yield Loss under Field Environments[J],2022,12(6).
APA	Zheng, Zhi.,Powell, Jonathan.,Gao, Shang.,Percy, Cassandra.,Kelly, Alison.,...&Liu, Chunji.(2022).Investigation of Two QTL Conferring Seedling Resistance to Fusarium Crown Rot in Barley on Reducing Grain Yield Loss under Field Environments.AGRONOMY-BASEL,12(6).
MLA	Zheng, Zhi,et al."Investigation of Two QTL Conferring Seedling Resistance to Fusarium Crown Rot in Barley on Reducing Grain Yield Loss under Field Environments".AGRONOMY-BASEL 12.6(2022).