Comparative genomics identifies genetic markers linked to structural variations that differentiate Puccinia graminis tritici and secalis formae speciales
Comparative genomics identifies genetic markers linked to structural variations that differentiate Puccinia graminis tritici and secalis formae speciales
复制标题
比较基因组学鉴定了与区分小麦柄锈菌和特殊黑麦柄锈菌的结构变异相关的遗传标记
DOI:
10.1111/ppa.13890
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发表时间:
2024
期刊:
影响因子:
2.7
通讯作者:
Bryan A
中科院分区:
文献类型:
--
作者:
Bryan A
Stem rust is a serious disease of many gramineous plants including small grain staples such as wheat, barley, rye and triticale. Separateformae speciales(ff. spp.) of the causal fungus,Puccinia graminis, predominantly infect certain host plant genera. However, despite these taxonomic subdivisions, manyP.graminisff. spp. are genetically too similar to distinguish using existing genetic markers. For those infecting cereals, this is particularly challenging forP.graminisf. sp.tritici(Pgt) andP.graminisf. sp.secalis(Pgs). Herein we harnessed newly available genomic data for 39 Pgt and Pgs isolates and identified four regions of structural variation that were used to design four simple PCR‐based assays to distinguish the aforementionedformae speciales. These genomic regions display large presence/absence variation between Pgt and Pgs isolates, and yet a high degree of sequence conservation within shared neighbouring regions, facilitating primer design. We also confirmed lack of amplification in host plant genera analysed, which included assessment of the shared alternate host of Pgt and Pgs,Berberis vulgaris. Accurate classification ofP.graminisff. spp. infections onB.vulgarisis exceptionally valuable to rapidly define plants harbouringP.graminisinoculum when adjacent to cereal crops. Finally, we demonstrated utility of these four genetic markers to correctly distinguish a genetically diverse array of Pgt and Pgs isolates. This strategy could now be readily applied to other pathogens of interest, which will be of increasing value as genomic resources continue to rapidly expand for many key biotic threats to agricultural productivity.
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DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
D. Parry;P. Nicholson
通讯作者:
P. Nicholson
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
R. Henry
通讯作者:
R. Henry
影响因子:
4.5
作者:
L. Szabo;P. O. Olivera Firpo;R. Wanyera;B. Visser;Yue Jin
通讯作者:
Yue Jin
影响因子:
3.7
作者:
Chen S;Yao H;Han J;Liu C;Song J;Shi L;Zhu Y;Ma X;Gao T;Pang X;Luo K;Li Y;Li X;Jia X;Lin Y;Leon C
通讯作者:
Leon C
影响因子:
1.4
作者:
Karaoglu, Haydar;Lee, Crystal Man Ying;Park, Robert
通讯作者:
Park, Robert