Inheritance of spontaneous panicle inflorescence mutation in alfalfa (Medicago x varia T. Martyn)
Zbigniew Bodzon
z.bodzon@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy w Radzikowie (Poland)
Abstract
The aim of research was to explain mode of inheritance of the lucerne mutation that causes the formation of panicles instead of racemes on stems. Panicles on mutant plants consisted of a lot of branches that caused several fold increase of flower numbers in inflorescences. Application of this character in lucerne breeding creates new opportunities to increase its seed yield potential. The inheritance of this character was studied in S1 and S2 progenies obtained by selfing a mutant plant, as well as in F1, F2 and F3 generations of hybrids obtained by crossing plants that produce racemes with S2 mutant progenies. The analysis of segregation in the selfed progenies of the mutant plants and in F1 – F3 progenies of the hybrids showed that the character of panicle inflorescence is controlled by single gene in the configuration of four recessive alleles pi pi pi pi (pi — panicle inflorescence)
Keywords:
alfalfa, inheritance, lucerne, panicle inflorescence, recessive gene, recessive trait, spontaneous mutationReferences
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Authors
Zbigniew Bodzonz.bodzon@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy w Radzikowie Poland
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