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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0148385
论文题名:	Population Structure of Peronospora effusa in the Southwestern United States
作者:	Rebecca Lyon; James Correll; Chunda Feng; Burt Bluhm; Sandesh Shrestha; Ainong Shi; Kurt Lamour
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-2-1
卷:	11, 期:2
语种:	英语
英文关键词:	Spinach ; Downy mildew ; Population genetics ; Genomics ; Heterozygosity ; Pathogens ; Phylogeography ; Sequence assembly tools
英文摘要:	Peronospora effusa is an obligate pathogen that causes downy mildew on spinach and is considered the most economically important disease of spinach. The objective of the current research was to assess genetic diversity of known historical races and isolates collected in 2014 from production fields in Yuma, Arizona and Salinas Valley, California. Candidate neutral single nucleotide polymorphisms (SNPs) were identified by comparing sequence data from reference isolates of known races of the pathogen collected in 2009 and 2010. Genotypes were assessed using targeted sequencing on genomic DNA extracted directly from infected plant tissue. Genotyping 26 historical and 167 contemporary samples at 46 SNP loci revealed 82 unique multi-locus genotypes. The unique genotypes clustered into five groups and the majority of isolates collected in 2014 were genetically closely related, regardless of source location. The historical samples, representing several races, showed greater genetic differentiation. Overall, the SNP data indicate much of the genotypic variation found within fields was produced during asexual development, whereas overall genetic diversity may be influenced by sexual recombination on broader geographical and temporal scales.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0148385&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/24018
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0148385.PDF（329KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Entomology & Plant Pathology, University of Tennessee, Knoxville, Tennessee, United States of America;Department of Plant Pathology, University of Arkansas, Fayetteville, Arkansas, United States of America;Department of Plant Pathology, University of Arkansas, Fayetteville, Arkansas, United States of America;Department of Plant Pathology, University of Arkansas, Fayetteville, Arkansas, United States of America;Department of Entomology & Plant Pathology, University of Tennessee, Knoxville, Tennessee, United States of America;Department of Horticulture, University of Arkansas, Fayetteville, Arkansas, United States of America;Department of Entomology & Plant Pathology, University of Tennessee, Knoxville, Tennessee, United States of America

Recommended Citation:

Rebecca Lyon,James Correll,Chunda Feng,et al. Population Structure of Peronospora effusa in the Southwestern United States[J]. PLOS ONE,2016-01-01,11(2)

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