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Citation for Study 19039

Citation title: "Population Structure of Phytophthora nicotianae Reveals Host-Specific Lineages on Brinjal, Ridge Gourd, and Tomato in South India".

Study name: "Population Structure of Phytophthora nicotianae Reveals Host-Specific Lineages on Brinjal, Ridge Gourd, and Tomato in South India".

This study is part of submission 19039 (Status: Published).

Citation

Chowdappa P., Kumar N.B., Kumar M., S M., Bhargavi R., & Lakshmi J. 2016. Population Structure of Phytophthora nicotianae Reveals Host-Specific Lineages on Brinjal, Ridge Gourd, and Tomato in South India. Phytopathology, .

Authors

• Chowdappa P.
• Kumar N.B. (submitter) +919632244992
• Kumar M.
• S M.
• Bhargavi R.
• Lakshmi J.

Abstract

Severe outbreaks of Phytophthora fruit rot on brinjal, ridge gourd, and tomato have been observed since 2011 in Andhra Pradesh, Karnataka, Telangana, and Tamil Nadu states of India. Therefore, 76 Phytophthora nicotianae isolates, recovered from brinjal (17), ridge gourd (40), and tomato (19) from different localities in these states during the June to December cropping season of 2012 and 2013, were characterized based on phenotypic and genotypic analyses and aggressiveness on brinjal, tomato, and ridge gourd. All brinjal and ridge gourd isolates were A2, while tomato isolates were both A1 (13) and A2 (6). All isolates were metalaxyl sensitive. In addition, isolates were genotyped for three mitochondrial (ribosomal protein L5-small subunit ribosomal RNA [rpl5-rns], small subunit ribosomal RNA-cytochrome c oxidase subunit 2 [rns-cox2], and cox2+spacer) and three nuclear loci (hypothetical protein [hyp], scp-like extracellular protein [scp], and beta-tubulin [b-tub]). All regions were polymorphic but nuclear regions were more variable than mitochondrial regions. The network analysis of genotypes using the combined dataset of three nuclear regions revealed a host-specific association. However, the network generated using mitochondrial regions limited such host-specific groupings only to brinjal isolates. P. nicotianae isolates were highly aggressive and produced significantly (P<0.01) larger lesions on their respective host of origin than on other hosts. The results indicate significant genetic variation in the population of P. nicotianae, leading to identification of host-specific lineages responsible for severe outbreaks on brinjal, ridge gourd, and tomato.

Keywords

Phytophthora nicotianae, Tomato, Brinjal, Ridgegourd

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S19039
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref25686,
  	 author = {Pallem  Chowdappa and Nirmal B.J. Kumar and Mohan  Kumar and Madhura  S and Reddy  Bhargavi and Jyothi  Lakshmi},
  	 title = {Population Structure of Phytophthora nicotianae Reveals Host-Specific Lineages on Brinjal, Ridge Gourd, and Tomato in South India},
  	 year = {2016},
  	 keywords = {Phytophthora nicotianae, Tomato, Brinjal, Ridgegourd},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Phytopathology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Severe outbreaks of Phytophthora fruit rot on brinjal, ridge gourd, and tomato have been observed since 2011 in Andhra Pradesh, Karnataka,
  Telangana, and Tamil Nadu states of India. Therefore, 76 Phytophthora nicotianae isolates, recovered from brinjal (17), ridge gourd (40), and
  tomato (19) from different localities in these states during the June to December cropping season of 2012 and 2013, were characterized based on
  phenotypic and genotypic analyses and aggressiveness on brinjal, tomato, and ridge gourd. All brinjal and ridge gourd isolates were A2, while tomato
  isolates were both A1 (13) and A2 (6). All isolates were metalaxyl sensitive. In addition, isolates were genotyped for three mitochondrial (ribosomal
  protein L5-small subunit ribosomal RNA [rpl5-rns], small subunit ribosomal RNA-cytochrome c oxidase subunit 2 [rns-cox2], and cox2+spacer) and three
  nuclear loci (hypothetical protein [hyp], scp-like extracellular protein [scp], and beta-tubulin [b-tub]). All regions were polymorphic but nuclear regions were more variable than mitochondrial regions. The network analysis of genotypes using the combined dataset of three nuclear regions revealed a
  host-specific association. However, the network generated using mitochondrial regions limited such host-specific groupings only to brinjal isolates.
  P. nicotianae isolates were highly aggressive and produced significantly (P<0.01) larger lesions on their respective host of origin than on other hosts. The results indicate significant genetic variation in the population of P. nicotianae, leading to identification of host-specific lineages responsible for severe outbreaks on brinjal, ridge gourd, and tomato.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 25686
  AU  - Chowdappa,Pallem 
  AU  - Kumar,Nirmal B.J.
  AU  - Kumar,Mohan 
  AU  - S,Madhura 
  AU  - Bhargavi,Reddy 
  AU  - Lakshmi,Jyothi 
  T1  - Population Structure of Phytophthora nicotianae Reveals Host-Specific Lineages on Brinjal, Ridge Gourd, and Tomato in South India
  PY  - 2016
  KW  - Phytophthora nicotianae
  KW  - Tomato
  KW  - Brinjal
  KW  - Ridgegourd
  UR  - http://dx.doi.org/
  N2  - Severe outbreaks of Phytophthora fruit rot on brinjal, ridge gourd, and tomato have been observed since 2011 in Andhra Pradesh, Karnataka,
  Telangana, and Tamil Nadu states of India. Therefore, 76 Phytophthora nicotianae isolates, recovered from brinjal (17), ridge gourd (40), and
  tomato (19) from different localities in these states during the June to December cropping season of 2012 and 2013, were characterized based on
  phenotypic and genotypic analyses and aggressiveness on brinjal, tomato, and ridge gourd. All brinjal and ridge gourd isolates were A2, while tomato
  isolates were both A1 (13) and A2 (6). All isolates were metalaxyl sensitive. In addition, isolates were genotyped for three mitochondrial (ribosomal
  protein L5-small subunit ribosomal RNA [rpl5-rns], small subunit ribosomal RNA-cytochrome c oxidase subunit 2 [rns-cox2], and cox2+spacer) and three
  nuclear loci (hypothetical protein [hyp], scp-like extracellular protein [scp], and beta-tubulin [b-tub]). All regions were polymorphic but nuclear regions were more variable than mitochondrial regions. The network analysis of genotypes using the combined dataset of three nuclear regions revealed a
  host-specific association. However, the network generated using mitochondrial regions limited such host-specific groupings only to brinjal isolates.
  P. nicotianae isolates were highly aggressive and produced significantly (P<0.01) larger lesions on their respective host of origin than on other hosts. The results indicate significant genetic variation in the population of P. nicotianae, leading to identification of host-specific lineages responsible for severe outbreaks on brinjal, ridge gourd, and tomato.
  L3  - 
  JF  - Phytopathology
  VL  - 
  IS  - 
  ER  -