Genetic Analysis of Resistance to Phytophthora Root Rot in Tomato (Lycopersicon esculentum Mill.)

E. Kozik, Majid R. Foolad, R. A. Jones

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The resistant accession, LA1312, and the susceptible cultivar ‘Peto 343′, were crossed to develop F1, F2 and BC1 populations for genetic analysis of resistance in tomatoes to Phytophthora parasitica Dastur, the causal agent of Phytophthora root rot. There was no maternal effect on resistance. Generation means analysis indicated that tolerance to Phytophthora root rot was under genetic control with both simple (additive and dominance) and digenic interaction (additive × additive and additive × dominance) effects contributing to the total genetic variation among generation means. Weighted least square regression analysis indicated that the majority (ca. 96 %) of the genetic variation could be explained by simple additive effects alone. Narrow sense heritability was estimated as 0.22. Based on effective factor formulae, at least five effective factors controlled the resistance. Implications for breeding procedures are discussed.

Original languageEnglish (US)
Pages (from-to)27-32
Number of pages6
JournalPlant Breeding
Volume106
Issue number1
DOIs
StatePublished - Jan 1 1991

Fingerprint

Phytophthora
Lycopersicon esculentum
root rot
Solanum lycopersicum var. lycopersicum
genetic techniques and protocols
tomatoes
dominance (genetics)
R Factors
Population Genetics
Phytophthora nicotianae var. parasitica
Least-Squares Analysis
genetic variation
Breeding
maternal effect
additive effect
Regression Analysis
least squares
population genetics
heritability
breeding

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Cite this

@article{ed6fc5a4160f4284bb2d70228f6b3653,
title = "Genetic Analysis of Resistance to Phytophthora Root Rot in Tomato (Lycopersicon esculentum Mill.)",
abstract = "The resistant accession, LA1312, and the susceptible cultivar ‘Peto 343′, were crossed to develop F1, F2 and BC1 populations for genetic analysis of resistance in tomatoes to Phytophthora parasitica Dastur, the causal agent of Phytophthora root rot. There was no maternal effect on resistance. Generation means analysis indicated that tolerance to Phytophthora root rot was under genetic control with both simple (additive and dominance) and digenic interaction (additive × additive and additive × dominance) effects contributing to the total genetic variation among generation means. Weighted least square regression analysis indicated that the majority (ca. 96 {\%}) of the genetic variation could be explained by simple additive effects alone. Narrow sense heritability was estimated as 0.22. Based on effective factor formulae, at least five effective factors controlled the resistance. Implications for breeding procedures are discussed.",
author = "E. Kozik and Foolad, {Majid R.} and Jones, {R. A.}",
year = "1991",
month = "1",
day = "1",
doi = "10.1111/j.1439-0523.1991.tb00475.x",
language = "English (US)",
volume = "106",
pages = "27--32",
journal = "Plant Breeding",
issn = "0179-9541",
publisher = "Wiley-Blackwell",
number = "1",

}

Genetic Analysis of Resistance to Phytophthora Root Rot in Tomato (Lycopersicon esculentum Mill.). / Kozik, E.; Foolad, Majid R.; Jones, R. A.

In: Plant Breeding, Vol. 106, No. 1, 01.01.1991, p. 27-32.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Genetic Analysis of Resistance to Phytophthora Root Rot in Tomato (Lycopersicon esculentum Mill.)

AU - Kozik, E.

AU - Foolad, Majid R.

AU - Jones, R. A.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The resistant accession, LA1312, and the susceptible cultivar ‘Peto 343′, were crossed to develop F1, F2 and BC1 populations for genetic analysis of resistance in tomatoes to Phytophthora parasitica Dastur, the causal agent of Phytophthora root rot. There was no maternal effect on resistance. Generation means analysis indicated that tolerance to Phytophthora root rot was under genetic control with both simple (additive and dominance) and digenic interaction (additive × additive and additive × dominance) effects contributing to the total genetic variation among generation means. Weighted least square regression analysis indicated that the majority (ca. 96 %) of the genetic variation could be explained by simple additive effects alone. Narrow sense heritability was estimated as 0.22. Based on effective factor formulae, at least five effective factors controlled the resistance. Implications for breeding procedures are discussed.

AB - The resistant accession, LA1312, and the susceptible cultivar ‘Peto 343′, were crossed to develop F1, F2 and BC1 populations for genetic analysis of resistance in tomatoes to Phytophthora parasitica Dastur, the causal agent of Phytophthora root rot. There was no maternal effect on resistance. Generation means analysis indicated that tolerance to Phytophthora root rot was under genetic control with both simple (additive and dominance) and digenic interaction (additive × additive and additive × dominance) effects contributing to the total genetic variation among generation means. Weighted least square regression analysis indicated that the majority (ca. 96 %) of the genetic variation could be explained by simple additive effects alone. Narrow sense heritability was estimated as 0.22. Based on effective factor formulae, at least five effective factors controlled the resistance. Implications for breeding procedures are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84989134960&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84989134960&partnerID=8YFLogxK

U2 - 10.1111/j.1439-0523.1991.tb00475.x

DO - 10.1111/j.1439-0523.1991.tb00475.x

M3 - Article

VL - 106

SP - 27

EP - 32

JO - Plant Breeding

JF - Plant Breeding

SN - 0179-9541

IS - 1

ER -