A case of duplication of chromosomes in the embryo-sac of Rosa canina L

Autor: A. E. Zeilinga
Rok vydání: 1969
Předmět:
Zdroj: Euphytica. 18:178-182
ISSN: 1573-5060
0014-2336
DOI: 10.1007/bf00035689
Popis: In a series of hybrids from inter alia Rosa canina x Rosa pendulina ‘Everest’ a plant with 77 chromosomes was found among some hybrids with the expected number of 49 chromosomes. This increased number is due to the occurrence of chromosome doubling during embryo-sac development at a time when reduction has already taken place.
Databáze: OpenAIRE