Second locus of Peptidase as a marker for genetic investigations of Phytophthora infestans

Авторы: Elansky S.N., Smirnov A.N.
Журнал: Botanica Lithuanica
Том: 9
Номер: 3
Год издания: 2003
Первая страница: 275
Последняя страница: 283
Аннотация: Second locus of peptidase (Pep-2) is useful, cheap and quite a technically simple marker that can be used for comparative analysis of P. infestans strains and populations. This polymorphic locus is represented by two alleles 100 and 112, all combinations from them commonly occur in the field populations. Genetic diversity for Pep-2 locus in the majority of populations is higher than for Pep-1. The use of Pep-2 in the complex with other markers such as mating type and Pep-1 allows to investigate the clonal structure of populations, the ways of spreading of pathogen and possible sources of infection. The complex of aforementioned features is promising for use in regional and interregional databases on late blight agent. The comparative analysis of Russian and Belorussian populations at mating type, Pep-1 and Pep-2 elucidated that the majority of investigated populations had the genotypes A1, 100/100, 100/100; A2, 100/100, 100/100, and A1, 100/100, 100/112. The genotypes А2, 100/100, 100/112 and А1, 100/100, 112/112 were more rare. Other possible genotypes were found for a few isolates in different populations or were absent.
Добавил в систему: Еланский Сергей Николаевич

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