Variation in floral organs in wild populations of Brassica rapa L
| Autor: | Houria Hadj-Arab, F. Aïssiou, Anne-Marie Chèvre, O. Abrous |
|---|---|
| Přispěvatelé: | Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB), Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Gynoecium Pollination Stamen Allogamy rapeseed Horticulture Biology medicine.disease_cause 01 natural sciences Sepal 03 medical and health sciences Pollen floral traits Brassica rapa Botany medicine [SDV.BV]Life Sciences [q-bio]/Vegetal Biology ComputingMilieux_MISCELLANEOUS reproductive system brassica rapa 15. Life on land organe floral 030104 developmental biology pollination efficiency caractère morphologique spontaneous accessions Petal 010606 plant biology & botany |
| Zdroj: | Acta Horticulturae Acta Horticulturae, International Society for Horticultural Science, 2018, pp.69-74. ⟨10.17660/ActaHortic.2018.1202.10⟩ Acta Horticulturae, 2018, 1202, pp.69-74. ⟨10.17660/ActaHortic.2018.1202.10⟩ |
| ISSN: | 0567-7572 |
| Popis: | International audience; In the hermaphroditic plants, floral morphological traits can significantly affect reproductive system by favouring the deposit of self or cross pollen. In the Brassica species, the self-incompatibility mechanism is undoubtedly the main cause of their allogamy; however, floral organs variation can modulate or reinforce the cross pollination level of the plants. In this study, we investigated floral variation among wild populations of Brassica rapa L. from Algeria. We estimated 20 floral traits, including sepals, petals, pistil, stamens and nectaries as well as ovules production. Floral parameters were measured using stereomicroscope. Each flower's ovule number and stigma-anther separation were also quantified under dissecting microscope. We found that all the flower parameters vary among populations or among individuals, especially stigma surface, nectary surface and stigma-anther separation. These three parameters have a coefficient of variation greater than 18,9%. Moreover, the individual variation is different according to the populations. These results suggest that floral morphology may affect pollination efficiency and as a consequence seed production in B. rapa wild populations but with different contributions according to the floral traits |
| Databáze: | OpenAIRE |
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