title: The genetic diversity of triticale genotypes involved in Polish breeding programs.
abstract: Genetic diversity analysis of triticale populations is useful for breeding programs, as it helps to select appropriate genetic material for classifying the parental lines, heterotic groups and predicting hybrid performance. In our study 232 breeding forms were analyzed using diversity arrays technology markers. Principal coordinate analysis followed by model-based Bayesian analysis of population structure revealed the presence of weak data structuring with three groups of data. In the first group, 17 spring and 17 winter forms were clustered. The second and the third groups were represented by 101 and 26 winter forms, respectively. Polymorphic information content values, as well as Shannon's Information Index, were higher for the first (0.319) and second (0.309) than for third (0.234) group. AMOVA analysis demonstrated a higher level of within variation (86 %) than among populations (14 %). This study provides the basic information on the presence of structure within a genetic pool of triticale breeding forms.
authors.affiliation: Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Błonie, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Niedziela
authors.affiliation: Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Błonie, Poland.
authors.forename: Renata
authors.initials: R
authors.lastname: Orłowska
authors.affiliation: Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Błonie, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Machczyńska
authors.affiliation: Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute - National Research Institute, 05-870 Radzików, Błonie, Poland.
authors.forename: Piotr T
authors.initials: PT
authors.lastname: Bednarek
keywords: DArT markers; Genetic diversity; Triticale