Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 3, pp. 105-109
Molecular genetic characterization of remote-optical methods data for effective selection of genotypes for plant breeding
1 Agrophysical Research Institute, Saint Petersburg, Россия
Accepted: 10.03.2019
DOI: 10.21046/2070-7401-2019-16-3-105-109
The paper describes the use of data obtained using remote-optical methods, diffuse reflection indices of the leaves of a cultivated plant for further analysis in the molecular-genetic mapping of the so-called loci of quantitative traits (QTL) of reflection indexes under controlled growing conditions. The mapping of chromosome loci involved in the manifestation of the studied physiological traits of leaf plate reflection allows establishing not only localization of identified QTLs on chromosomes, but also which parental form was introduced by one or another allele, as well as the percentage of phenotypic variability determined by the identified and mapped QTL. This allows the most effective identification of promising genotypes with the desired economically valuable traits. This approach is applicable only to mapping populations of plants whose genome is saturated with molecular markers. The use of non-invasive optical methods makes it possible with high throughput to estimate the intensity of the photosynthetic apparatus of plants and can be used for productive selection of promising genotypes in the selection of cultivated plants for economically valuable parameters not only under controlled conditions of agroecobio polygon, but also further in field conditions. In addition, knowledge of the determinants that determine the manifestation of various types of economically valuable plant traits makes it possible to more efficiently manage plant productivity as part of the implementation of precision agriculture programs.
Keywords: non-invasive optical methods, mapping of quantitative trait loci, reflection indexes, controlled conditions of controlled agroecosystem, selection of genotypes for breeding
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