Repository logo
 
Publication

Downy mildew resistance and genetic variability in a wild rocket germplasm collection

2022Journal article Open access
Simple item page
dc.contributor.authorCoelho, Paula S.
dc.contributor.authorReis, João M.
dc.contributor.authorPereira, Ana L.
dc.contributor.authorVairinhos, Aliana
dc.contributor.authorLopes, Violeta
dc.contributor.authorLeitão, José
dc.date.accessioned2023-01-25T10:51:47Z
dc.date.available2023-01-25T10:51:47Z
dc.date.issued2022
dc.description.abstractOne hundred accessions of a "core collection" of Diplotaxis tenuifolia (L.) DC. and Eruca spp. were screened at seedling stage for resistance to downy mildew. Accessions tested at the seedling stage were assigned to 0-6 interaction phenotypes. All cultivated rocket (Eruca spp.) accessions exhibited a resistant (R) response both in cotyledons and in young leaves. The wild rocket (D. tenuifolia) accessions exhibited higher susceptibility in cotyledons than in the 1st and 2nd leaves, with 16 and 47 accessions classified as resistant or partially resistant (PR) in the cotyledon and in leaves stages, respectively. Only three wild rocket accessions displayed an R phenotype in cotyledons and leaves. The most frequent response in cotyledons vs. leaves was the highly susceptible/susceptible (HS/S) combination (33 accessions), followed by the S/PR combination (18 accessions). A significant correlation (r = 0.917, P < .000) was observed between the disease index in cotyledons and leaves. The molecular markers analyses revealed a wide genetic distance between Diplotaxis and Eruca, which gather in two clearly separated species clusters. The molecular variability is accompanied by a wide diversity of interactions with the pathogen isolate. The closest similarities among D. tenuifolia accessions were found in accessions provided by the same breeding company. Future studies will be focused on two main objectives: (a) the assessment of the accessions behavior that have evidenced an R/R, S/PR, and HS/PR cotyledon and leaf response under greenhouse or field production and (b) the genome mapping of genetic features that provide downy mildew resistance.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1002/agj2.21190pt_PT
dc.identifier.issn0002-1962
dc.identifier.urihttp://hdl.handle.net/10400.1/18924
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationGREEN-IT "Bioresources for Sustainability"
dc.relationGREEN-IT "Bioresources for Sustainability"
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleDowny mildew resistance and genetic variability in a wild rocket germplasm collectionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGREEN-IT "Bioresources for Sustainability"
oaire.awardTitleGREEN-IT "Bioresources for Sustainability"
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FASP-PLA%2F28963%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04551%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04551%2F2020/PT
oaire.citation.endPage3095pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage3083pt_PT
oaire.citation.titleAgronomy Journalpt_PT
oaire.citation.volume114pt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameReis
person.familyNameLeitão
person.givenNameJoão
person.givenNameJosé
person.identifier258398
person.identifier.ciencia-idC818-CA64-011F
person.identifier.ciencia-id7A17-3E0A-73AD
person.identifier.orcid0000-0002-3461-8904
person.identifier.orcid0000-0003-4278-0415
person.identifier.ridAAH-3958-2020
person.identifier.scopus-author-id7005119796
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8b194de2-d1fa-438c-bff1-b488dc7b00e1
relation.isAuthorOfPublication0f990d1c-2913-4f8a-8fb6-f8b02721247f
relation.isAuthorOfPublication.latestForDiscovery8b194de2-d1fa-438c-bff1-b488dc7b00e1
relation.isProjectOfPublication9fbcb5fe-13fe-491f-8d8a-88c7426cacc0
relation.isProjectOfPublication9672d440-b305-453f-982c-95ee58893841
relation.isProjectOfPublicationb5f87575-8c89-495f-990b-0e9ec52fffb8
relation.isProjectOfPublication.latestForDiscovery9672d440-b305-453f-982c-95ee58893841

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Agronomy Journal - 2022 - Coelho - Downy mildew resistance and genetic variability in a wild rocket germplasm collection.pdf
Size:
1.46 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.46 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

FCT2-Artigos (em revistas ou actas indexadas)