Genetic analysis of 'Candidatus Phytoplasma aurantifolia' associated with witches' broom on acid lime trees

Aisha G. Al-Ghaithi, Ali M. Al-Subhi, Issa H. Al-Mahmooli, Abdullah M. Al-Sadi

Research output: Contribution to journalArticle

Abstract

"Candidatus Phytoplasma aurantifolia" is associated with witches' broom disease of lime in Oman and the UAE. A previous study showed that an infection by phytoplasma may not necessarily result in the physical appearance of witches' broom symptoms in some locations in Oman and the UAE. This study investigated whether phytoplasma strains belonging to "Ca. P. aurantifolia" (based on the 16S rRNA gene analysis) in locations where disease symptoms are expressed are different from phytoplasma in locations where disease symptoms are not expressed. About 21 phytoplasma strains (15 from areas and trees with disease symptoms and six from areas and trees without disease symptoms) were included in the analysis. The study utilized sequences of the imp and SAP11 genes to characterize the 21 strains. Phylogenetic analysis of both genes showed that the 21 strains are similar to each other and to reference strains in GenBank. The study shows that there is a low level of diversity among all phytoplasma strains. In addition, it shows that phytoplasma in places where witches' broom symptoms are not expressed are similar to phytoplasma in places where disease symptoms are expressed. This may suggest that disease expression is not linked to the presence of different phytoplasma strains, but may be due to other factors such as weather conditions.

Original languageEnglish
Article numbere4480
JournalPeerJ
Volume2018
Issue number3
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Phytoplasma
witches' broom
genetic techniques and protocols
signs and symptoms (plants)
Acids
acids
Genes
Oman
tree diseases
lime
genes
Nucleic Acid Databases
Weather
rRNA Genes
weather
ribosomal RNA

Keywords

  • Acid lime
  • Oman
  • Phylogeny
  • WBDL

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Genetic analysis of 'Candidatus Phytoplasma aurantifolia' associated with witches' broom on acid lime trees. / Al-Ghaithi, Aisha G.; Al-Subhi, Ali M.; Al-Mahmooli, Issa H.; Al-Sadi, Abdullah M.

In: PeerJ, Vol. 2018, No. 3, e4480, 01.01.2018.

Research output: Contribution to journalArticle

Al-Ghaithi, Aisha G. ; Al-Subhi, Ali M. ; Al-Mahmooli, Issa H. ; Al-Sadi, Abdullah M. / Genetic analysis of 'Candidatus Phytoplasma aurantifolia' associated with witches' broom on acid lime trees. In: PeerJ. 2018 ; Vol. 2018, No. 3.
@article{2eb2f87de9ac45ac90a4a4e220afa788,
title = "Genetic analysis of 'Candidatus Phytoplasma aurantifolia' associated with witches' broom on acid lime trees",
abstract = "{"}Candidatus Phytoplasma aurantifolia{"} is associated with witches' broom disease of lime in Oman and the UAE. A previous study showed that an infection by phytoplasma may not necessarily result in the physical appearance of witches' broom symptoms in some locations in Oman and the UAE. This study investigated whether phytoplasma strains belonging to {"}Ca. P. aurantifolia{"} (based on the 16S rRNA gene analysis) in locations where disease symptoms are expressed are different from phytoplasma in locations where disease symptoms are not expressed. About 21 phytoplasma strains (15 from areas and trees with disease symptoms and six from areas and trees without disease symptoms) were included in the analysis. The study utilized sequences of the imp and SAP11 genes to characterize the 21 strains. Phylogenetic analysis of both genes showed that the 21 strains are similar to each other and to reference strains in GenBank. The study shows that there is a low level of diversity among all phytoplasma strains. In addition, it shows that phytoplasma in places where witches' broom symptoms are not expressed are similar to phytoplasma in places where disease symptoms are expressed. This may suggest that disease expression is not linked to the presence of different phytoplasma strains, but may be due to other factors such as weather conditions.",
keywords = "Acid lime, Oman, Phylogeny, WBDL",
author = "Al-Ghaithi, {Aisha G.} and Al-Subhi, {Ali M.} and Al-Mahmooli, {Issa H.} and Al-Sadi, {Abdullah M.}",
year = "2018",
month = "1",
day = "1",
doi = "10.7717/peerj.4480",
language = "English",
volume = "2018",
journal = "PeerJ",
issn = "2167-8359",
publisher = "PeerJ",
number = "3",

}

TY - JOUR

T1 - Genetic analysis of 'Candidatus Phytoplasma aurantifolia' associated with witches' broom on acid lime trees

AU - Al-Ghaithi, Aisha G.

AU - Al-Subhi, Ali M.

AU - Al-Mahmooli, Issa H.

AU - Al-Sadi, Abdullah M.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - "Candidatus Phytoplasma aurantifolia" is associated with witches' broom disease of lime in Oman and the UAE. A previous study showed that an infection by phytoplasma may not necessarily result in the physical appearance of witches' broom symptoms in some locations in Oman and the UAE. This study investigated whether phytoplasma strains belonging to "Ca. P. aurantifolia" (based on the 16S rRNA gene analysis) in locations where disease symptoms are expressed are different from phytoplasma in locations where disease symptoms are not expressed. About 21 phytoplasma strains (15 from areas and trees with disease symptoms and six from areas and trees without disease symptoms) were included in the analysis. The study utilized sequences of the imp and SAP11 genes to characterize the 21 strains. Phylogenetic analysis of both genes showed that the 21 strains are similar to each other and to reference strains in GenBank. The study shows that there is a low level of diversity among all phytoplasma strains. In addition, it shows that phytoplasma in places where witches' broom symptoms are not expressed are similar to phytoplasma in places where disease symptoms are expressed. This may suggest that disease expression is not linked to the presence of different phytoplasma strains, but may be due to other factors such as weather conditions.

AB - "Candidatus Phytoplasma aurantifolia" is associated with witches' broom disease of lime in Oman and the UAE. A previous study showed that an infection by phytoplasma may not necessarily result in the physical appearance of witches' broom symptoms in some locations in Oman and the UAE. This study investigated whether phytoplasma strains belonging to "Ca. P. aurantifolia" (based on the 16S rRNA gene analysis) in locations where disease symptoms are expressed are different from phytoplasma in locations where disease symptoms are not expressed. About 21 phytoplasma strains (15 from areas and trees with disease symptoms and six from areas and trees without disease symptoms) were included in the analysis. The study utilized sequences of the imp and SAP11 genes to characterize the 21 strains. Phylogenetic analysis of both genes showed that the 21 strains are similar to each other and to reference strains in GenBank. The study shows that there is a low level of diversity among all phytoplasma strains. In addition, it shows that phytoplasma in places where witches' broom symptoms are not expressed are similar to phytoplasma in places where disease symptoms are expressed. This may suggest that disease expression is not linked to the presence of different phytoplasma strains, but may be due to other factors such as weather conditions.

KW - Acid lime

KW - Oman

KW - Phylogeny

KW - WBDL

UR - http://www.scopus.com/inward/record.url?scp=85042853876&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042853876&partnerID=8YFLogxK

U2 - 10.7717/peerj.4480

DO - 10.7717/peerj.4480

M3 - Article

VL - 2018

JO - PeerJ

JF - PeerJ

SN - 2167-8359

IS - 3

M1 - e4480

ER -