Gene Introgression in Weeds Depends on Initial Gene Location in the Crop: Brassica napus-Raphanus raphanistrum Model.

ABSTRACT: The effect of gene location within a crop genome on its transfer to a weed genome remains an open question for gene flow assessment. To elucidate this question, we analyzed advanced generations of intergeneric hybrids, derived from an initial pollination of known oilseed rape varieties (Brassica napus, AACC, 2n = 38) by a local population of wild radish (Raphanus raphanistrum, RrRr, 2n = 18). After five generations of recurrent pollination, 307 G5 plants with a chromosome number similar to wild radish were genotyped using 105 B. napus specific markers well distributed along the chromosomes. They revealed that 49.8% of G5 plants carried at least one B. napus genomic region. According to the frequency of B. napus markers (0-28%), four classes

SUBMITTER: Adamczyk-Chauvat K 

PROVIDER: S-EPMC5500136 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature