Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry

Phytophthora cactorum has two distinct pathotypes that cause crown rot and leather rot in strawberry (Fragaria × ananassa). Strains of the crown rot pathotype can infect both the rhizome (crown) and fruit tissues, while strains of the leather rot pathotype can only infect the fruits of strawberry. T...

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Main Authors: Anupam Gogoi, Simeon L. Rossmann, Erik Lysøe, Arne Stensvand, May Bente Brurberg
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-07-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2023.1214924/full
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author Anupam Gogoi
Anupam Gogoi
Simeon L. Rossmann
Erik Lysøe
Arne Stensvand
Arne Stensvand
May Bente Brurberg
May Bente Brurberg
author_facet Anupam Gogoi
Anupam Gogoi
Simeon L. Rossmann
Erik Lysøe
Arne Stensvand
Arne Stensvand
May Bente Brurberg
May Bente Brurberg
author_sort Anupam Gogoi
collection DOAJ
description Phytophthora cactorum has two distinct pathotypes that cause crown rot and leather rot in strawberry (Fragaria × ananassa). Strains of the crown rot pathotype can infect both the rhizome (crown) and fruit tissues, while strains of the leather rot pathotype can only infect the fruits of strawberry. The genome of a highly virulent crown rot strain, a low virulent crown rot strain, and three leather rot strains were sequenced using PacBio high fidelity (HiFi) long read sequencing. The reads were de novo assembled to 66.4–67.6 megabases genomes in 178–204 contigs, with N50 values ranging from 892 to 1,036 kilobases. The total number of predicted complete genes in the five P. cactorum genomes ranged from 17,286 to 17,398. Orthology analysis identified a core secretome of 8,238 genes. Comparative genomic analysis revealed differences in the composition of potential virulence effectors, such as putative RxLR and Crinklers, between the crown rot and the leather rot pathotypes. Insertions, deletions, and amino acid substitutions were detected in genes encoding putative elicitors such as beta elicitin and cellulose-binding domain proteins from the leather rot strains compared to the highly virulent crown rot strain, suggesting a potential mechanism for the crown rot strain to escape host recognition during compatible interaction with strawberry. The results presented here highlight several effectors that may facilitate the tissue-specific colonization of P. cactorum in strawberry.
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spelling doaj.art-9115c42f912f482ba97fbc47fdc315d52023-07-03T08:04:14ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-07-011410.3389/fmicb.2023.12149241214924Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberryAnupam Gogoi0Anupam Gogoi1Simeon L. Rossmann2Erik Lysøe3Arne Stensvand4Arne Stensvand5May Bente Brurberg6May Bente Brurberg7Department of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), Ås, NorwayDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, NorwayDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, NorwayDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, NorwayDepartment of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), Ås, NorwayDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, NorwayDepartment of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), Ås, NorwayDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, NorwayPhytophthora cactorum has two distinct pathotypes that cause crown rot and leather rot in strawberry (Fragaria × ananassa). Strains of the crown rot pathotype can infect both the rhizome (crown) and fruit tissues, while strains of the leather rot pathotype can only infect the fruits of strawberry. The genome of a highly virulent crown rot strain, a low virulent crown rot strain, and three leather rot strains were sequenced using PacBio high fidelity (HiFi) long read sequencing. The reads were de novo assembled to 66.4–67.6 megabases genomes in 178–204 contigs, with N50 values ranging from 892 to 1,036 kilobases. The total number of predicted complete genes in the five P. cactorum genomes ranged from 17,286 to 17,398. Orthology analysis identified a core secretome of 8,238 genes. Comparative genomic analysis revealed differences in the composition of potential virulence effectors, such as putative RxLR and Crinklers, between the crown rot and the leather rot pathotypes. Insertions, deletions, and amino acid substitutions were detected in genes encoding putative elicitors such as beta elicitin and cellulose-binding domain proteins from the leather rot strains compared to the highly virulent crown rot strain, suggesting a potential mechanism for the crown rot strain to escape host recognition during compatible interaction with strawberry. The results presented here highlight several effectors that may facilitate the tissue-specific colonization of P. cactorum in strawberry.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1214924/fulloomycetePacBio sequel II sequencingelicitorsRxLRsCrinklerseffectors
spellingShingle Anupam Gogoi
Anupam Gogoi
Simeon L. Rossmann
Erik Lysøe
Arne Stensvand
Arne Stensvand
May Bente Brurberg
May Bente Brurberg
Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
Frontiers in Microbiology
oomycete
PacBio sequel II sequencing
elicitors
RxLRs
Crinklers
effectors
title Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
title_full Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
title_fullStr Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
title_full_unstemmed Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
title_short Genome analysis of Phytophthora cactorum strains associated with crown- and leather-rot in strawberry
title_sort genome analysis of phytophthora cactorum strains associated with crown and leather rot in strawberry
topic oomycete
PacBio sequel II sequencing
elicitors
RxLRs
Crinklers
effectors
url https://www.frontiersin.org/articles/10.3389/fmicb.2023.1214924/full
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