marker trait

mark·er trait

a trait that may be of little importance in itself but which by association, linkage, or other means facilitates the detection, anticipation, or understanding of a disease or (for genetic diseases) the localization of the causative gene on the karyotype.

mark·er trait

(mahr'kĕr trāt)
A trait that may be of little importance in itself but which by association, linkage, or other means facilitates the detection, anticipation, or understanding of a disease or (for genetic diseases) the localization of the causative gene on the karyotype.
References in periodicals archive ?
A single marker trait analysis showed that M_1 SNP was not significantly associated with any of the growth traits tested in KNC.
A total of 11 marker trait associations were detected by mixed linear model approach (MLM).
Keywords: Wheat; Drought; Marker trait association; Linkage disequilibrium; Mixed linear model; Association mapping
In the case of the SB genetic stocks, the blue marker trait is strongly expressed and is clearly visible in one allelic dose.
The Syn4 was expected to have fewer significant marker trait associations than the Syn0.
However, there were no significant differences in number of significant marker trait associations between the [S.sub.1] and either the FR1064 or FR616 progenies (Table 6) in either generation based on [chi square] tests or between the FR1064 and FR616 progenies (results not shown).
In crosses involving dominant marker genes, [F.sub.1] populations were rogued to purity for the marker trait. Segregating [F.sub.2] populations were planted in replicated progeny rows in 1992, 1993, and 1994, and scored as to phenotype.
Stem color could be a useful marker trait because it is simply inherited and can be scored in very young plants (1-2 wk postemergence).
Researchers interested in initiating annual medic breeding programs will benefit from knowing the inheritance patterns of several marker traits in a number of annual medic species.
The research studies reported herein were carried out under an IAEA research contract 8 142/RB, titled, "Development of improved germplasm of cotton through radiation and DNA- mediated embryo transformation technique." with the objectives to incorporate qualitative marker traits (petal spot, pollen colour) of the donor parents into G.
Moreover, introgression of some of the qualitative marker traits, such as red petal spot, yellow pollen colour, etc., from the G.
A major advantage of distance measures based on marker traits is that a germplasm collection can be open-ended and flexible.