biostudies-literatureUnknown206(3)Adamczyk-Chauvat KThe 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 (<i>Brassica napus</i>, AACC, 2<i>n</i> = 38) by a local population of wild radish (<i>Raphanus raphanistrum</i>, RrRr, 2<i>n</i> = 18). After five generations of recurrent pollination, 307 G5 plants with a chromosome number similar to wild radish were genotyped using 105 <i>B. napus</i> specific markers well distributed along the chromosomes. They revealed that 49.8% of G5 plants carried at least one <i>B. napus</i> genomic region. According to the frequency of <i>B. napus</i> markers (0-28%), four classes Genetics1361-1372https://www.ebi.ac.uk/biostudies/studies/S-EPMC5500136biostudies-literatureGene Introgression in Weeds Depends on Initial Gene Location in the Crop: <i>Brassica napus</i>-<i>Raphanus raphanistrum</i> Model.PMC5500136Eber FFalentin CVannier AThomas GMorice JLode MCoriton OChevre AMDarmency HJenczewski EGilet MAdamczyk-Chauvat KHuteau VNegre SAlrustom BFrancois CDelaunay SRousseau-Gueutin MfalseGene Introgression in Weeds Depends on Initial Gene Location in the Crop: <i>Brassica napus</i>-<i>Raphanus raphanistrum</i> Model.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 (<i>Brassica napus</i>, AACC, 2<i>n</i> = 38) by a local population of wild radish (<i>Raphanus raphanistrum</i>, RrRr, 2<i>n</i> = 18). After five generations of recurrent pollination, 307 G5 plants with a chromosome number similar to wild radish were genotyped using 105 <i>B. napus</i> specific markers well distributed along the chromosomes. They revealed that 49.8% of G5 plants carried at least one <i>B. napus</i> genomic region. According to the frequency of <i>B. napus</i> markers (0-28%), four classes 2017-01-01T00:00:00Z2017 Jul2025-05-29T19:27:33.122Z2025-05-29T19:27:33.122ZS-EPMC55001362853343910.1534/genetics.117.201715