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Inheritance of green peach aphid resistance in the peach cultivar ‘Rubira’
Author(s) -
Pascal T.,
Pfeiffer F.,
Kervella J.,
Lacroze J. P.,
Sauge M. H.,
Weber W. E.
Publication year - 2002
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1046/j.1439-0523.2002.734333.x
Subject(s) - biology , cultivar , aphid , rootstock , pest analysis , resistance (ecology) , horticulture , botany , agronomy
The green peach aphid (GPA) is a serious pest of peach tree in many areas of the world. To date, only one GPA resistance gene has been assigned in peach. This study was initiated to determine the inheritance of GPA resistance in the red leaf peach rootstock cultivar ‘Rubira’. Crosses were made between ‘Rubira’ and the susceptible green leaf peach rootstock cultivar ‘Pamirskij 5′. Genetic analysis was performed on the parents, F 1 and F 2 progenies. Analyses of segregation patterns of plants in F 1 (1:0) and F 2 (3:1) indicated single dominant gene control of GPA resistance in ‘Rubira’. Reddish spots, probably due to aphid feeding punctures, are associated with, but not themselves responsible for, the GPA resistance in ‘Rubira’. No relationship was found between GPA resistance and the red leaf character of ‘Rubira’.