title: Salt tolerance in Lycopersicon species. III. Detection of quantitative trait loci by means of molecular markers.
abstract: A segregating population derived from a cross between L. esculentum cv Madrigal and a line of L. pimpinellifolium was used to identify genetic markers linked to QTLs involved in salinity tolerance in terms of yield, under a conductivity of 15 dS/m (171.1 mM NaCl). Six markers resulted, associated with QTLs affecting average fruit weight, fruit number and total weight under salinity. One of them, Aco-1, behaves reversely to the expectation from parental means; this and other features make it a promising target to obtain salt-tolerant tomatoes. Epistatic interactions were also found, thus affecting the criteria for marker-assisted selection. Although only 41% of the loci assayed were polymorphic, a high efficiency in identifying QTLs was achieved, since 43% of the marker loci are linked to QTLs for the trait under study.
authors.affiliation: Apartado Oficial, IVIA, 46113, Moncada, Valencia, Spain.
authors.forename: M P
authors.initials: MP
authors.lastname: Bretó
authors.forename: M J
authors.initials: MJ
authors.lastname: Aśins
authors.forename: E A
authors.initials: EA
authors.lastname: Carbonell