Spontanous tetraploids of white lupin (Lupinus albus L.s.I.).I.Origin and some morphological characters

• Authors: T. Kazimierski , E.M. Kazimierska
• Languages of publication: EN

Abstracts

EN

The studies focused on the mechanism of autotetraploid plant occurrence in a hybrid progeny obtained from crossing geographically distant white lupin subspecies.It has been found that autotetraploid plants occurred : a) parthenogenetically - through dupllication of chromosome number in an unreduced megaspore; b) amphimitically - due to duplication of chromosome number in part of somatic cells: in sectors with a doubled chromosome number there occur 2n gametes.Tetraploid plants occurred parthenogenetically died in the next generation, wheres those occurred amphimitically on chimera plants appeared to be viable.Autotetraploid plants in comparison to diploid forms flowered and matured later were less fertile and characterized by larger seeds.

Keywords

EN

AMPHIMICTIC; AUTOTETRAPLOID; CHIMERA; HYBRID; PARTHENOGENESIS

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Genetica Polonica
• Year: 1994
• Volume: 35
• Issue: 4
• Pages: 271-284

Contributors

author

T. Kazimierski

author

E.M. Kazimierska

• Document Type: article
• Publication order reference: T.Kazimierski