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Morphological differences among Raphanus raphanistrum populations and their relationship to related crops
Author(s) -
Liu Yongbo,
Darmency Henri
Publication year - 2019
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12729
Subject(s) - biology , brassicaceae , raphanus , sinapis , silique , gene flow , botany , brassica , cultivated plant taxonomy , asparagaceae , genetic variation , gene , genetics , arabidopsis thaliana , mutant
Wild radish ( Raphanus raphanistrum ) has developed introgressed populations after hybridization with its cultivated counterpart ( R. sativus ) in California. Hybridization with various Brassica and Sinapis species is also possible. To determine if hybridization is responsible of the genetic diversity of European populations, six wild radish populations with distinct morphological traits were sampled from geographically distant regions in Europe. Plants were cultivated in an oilseed rape field and in insect‐proof cages. Silique and flower morphology, growth, and reproductive traits were measured. The wild radish populations could be discriminated by the morphological traits, but not related to geographic regions. In particular, populations of one region showed wide variability in terms of silique shape and growth behaviour, and small‐sized flowers. Although the origin of morphological diversity in wild radish is unclear, i.e. native or due to gene flow from the cultivated radish or other Brassicaceae, significant morphological divergence was found that could have relevant effects on plant ecology and adaptation.