The chestnut blight fungus world tour: successive introduction events from diverse origins in an invasive plant fungal pathogen

2012 ◽  
Vol 21 (16) ◽  
pp. 3931-3946 ◽  
Author(s):  
C. DUTECH ◽  
B. BARRÈS ◽  
J. BRIDIER ◽  
C. ROBIN ◽  
M. G. MILGROOM ◽  
...  
Keyword(s):  
Fungal Pathogen ◽  
Invasive Plant ◽  
Chestnut Blight ◽  
Chestnut Blight Fungus ◽  
Plant Fungal Pathogen

scholarly journals Genome Sequence of the Chestnut Blight Fungus Cryphonectria parasitica EP155: A Fundamental Resource for an Archetypical Invasive Plant Pathogen

2020 ◽  
Vol 110 (6) ◽  
pp. 1180-1188 ◽  
Author(s):  
Jo Anne Crouch ◽  
Angus Dawe ◽  
Andrea Aerts ◽  
Kerrie Barry ◽  
Alice C. L. Churchill ◽  
...  
Keyword(s):  
Plant Pathogen ◽  
Invasive Plant ◽  
Experimental System ◽  
Cryphonectria Parasitica ◽  
Chestnut Blight ◽  
Simple Sequence Repeat Markers ◽  
Chestnut Blight Fungus ◽  
Telomere Sequence ◽  
Incompatibility System ◽  
Simple Sequence

Cryphonectria parasitica is the causal agent of chestnut blight, a fungal disease that almost entirely eliminated mature American chestnut from North America over a 50-year period. Here, we formally report the genome of C. parasitica EP155 using a Sanger shotgun sequencing approach. After finishing and integration with simple-sequence repeat markers, the assembly was 43.8 Mb in 26 scaffolds (L50 = 5; N50 = 4.0Mb). Eight chromosomes are predicted: five scaffolds have two telomeres and six scaffolds have one telomere sequence. In total, 11,609 gene models were predicted, of which 85% show similarities to other proteins. This genome resource has already increased the utility of a fundamental plant pathogen experimental system through new understanding of the fungal vegetative incompatibility system, with significant implications for enhancing mycovirus-based biological control.

scholarly journals Trans-Kingdom RNA Silencing in Plant–Fungal Pathogen Interactions

2018 ◽  
Vol 11 (2) ◽  
pp. 235-244 ◽  
Author(s):  
Chenlei Hua ◽  
Jian-Hua Zhao ◽  
Hui-Shan Guo
Keyword(s):  
Fungal Pathogen ◽  
Rna Silencing ◽  
Plant Fungal Pathogen

Comparative vesicle proteomics reveals selective regulation of protein expression in chestnut blight fungus by a hypovirus

2013 ◽  
Vol 78 ◽  
pp. 221-230 ◽  
Author(s):  
Jinzi Wang ◽  
Fangzhen Wang ◽  
Youjun Feng ◽  
Ke Mi ◽  
Qi Chen ◽  
...  
Keyword(s):  
Protein Expression ◽  
Chestnut Blight ◽  
Chestnut Blight Fungus

Crypt1, an active Ac-like transposon from the chestnut blight fungus, Cryphonectria parasitica

2001 ◽  
Vol 265 (4) ◽  
pp. 730-738 ◽  
Author(s):  
D. Linder-Basso ◽  
R. Foglia ◽  
P. Zhu ◽  
B.I. Hillman
Keyword(s):  
Cryphonectria Parasitica ◽  
Chestnut Blight ◽  
Chestnut Blight Fungus

scholarly journals Hard Mast Production Before and After the Chestnut Blight

2000 ◽  
Vol 24 (4) ◽  
pp. 196-201 ◽  
Author(s):  
Seth J. Diamond ◽  
Robert H. Giles ◽  
Roy L. Kirkpatrick ◽  
Gary J. Griffin
Keyword(s):  
Carrying Capacity ◽  
Basal Area ◽  
Cryphonectria Parasitica ◽  
Castanea Dentata ◽  
Chestnut Blight ◽  
Wildlife Species ◽  
Chestnut Blight Fungus ◽  
Southern Appalachian ◽  
Before And After ◽  
Mast Production

Abstract We estimated hard mast production of a Southern Appalachian forest for two 10 yr intervals: one before and one, 35 yr after, the chestnut blight fungus (Cryphonectria parasitica) (Murr.) Barr, had killed all mature chestnut trees. The basal area of hard mast-producing trees in the postblight forest was 28% less than in the preblight forest. The estimate of hard mast output was 34% less after the chestnut blight. Postblight production was less than preblight production for 8 of 10 yr. During 5 of these years, postblight production was only 5-27% of preblight production. Annual preblight mast production was relatively stable, whereas annual postblight production fluctuated substantially. Our findings suggest that the loss of mature chestnuts (Castanea dentata) markedly reduced the Southern Appalachian forest's carrying capacity for certain wildlife species. South. J. Appl. For 24(4):196-201.

scholarly journals Characterization of Hypovirus-Derived Small RNAs Generated in the Chestnut Blight Fungus by an Inducible DCL-2-Dependent Pathway

2008 ◽  
Vol 82 (6) ◽  
pp. 2613-2619 ◽  
Author(s):  
Xuemin Zhang ◽  
Gert C. Segers ◽  
Qihong Sun ◽  
Fuyou Deng ◽  
Donald L. Nuss
Keyword(s):  
Small Rnas ◽  
Rna Silencing ◽  
Cryphonectria Parasitica ◽  
Chestnut Blight ◽  
Fungal Host ◽  
Chestnut Blight Fungus ◽  
Mutant Strains ◽  
Suppressor Of Rna Silencing ◽  
Dependent Pathway

ABSTRACT The disruption of one of two dicer genes, dcl-2, of the chestnut blight fungus Cryphonectria parasitica was recently shown to increase susceptibility to mycovirus infection (G. C. Segers, X. Zhang, F. Deng, Q. Sun, and D. L. Nuss, Proc. Natl. Acad. Sci. USA 104:12902-12906, 2007). We now report the accumulation of virus-derived small RNAs (vsRNAs) in hypovirus CHV1-EP713-infected wild-type and dicer gene dcl-1 mutant C. parasitica strains but not in hypovirus-infected dcl-2 mutant and dcl-1 dcl-2 double-mutant strains. The CHV1-EP713 vsRNAs were produced from both the positive and negative viral RNA strands at a ratio of 3:2 in a nonrandom distribution along the viral genome. We also show that C. parasitica responds to hypovirus and mycoreovirus infections with a significant increase (12- to 20-fold) in dcl-2 expression while the expression of dcl-1 is increased only modestly (2-fold). The expression of dcl-2 is further increased (∼35-fold) following infection with a hypovirus CHV1-EP713 mutant that lacks the p29 suppressor of RNA silencing. The combined results demonstrate the biogenesis of mycovirus-derived small RNAs in a fungal host through the action of a specific dicer gene, dcl-2. They also reveal that dcl-2 expression is significantly induced in response to mycovirus infection by a mechanism that appears to be repressed by the hypovirus-encoded p29 suppressor of RNA silencing.

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