caa a22 4500 445845899 CHVBK 20180317145359.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10709-012-9633-1 doi (NATIONALLICENCE)springer-10.1007/s10709-012-9633-1 Evolutionary dynamics of cycle length in pearl millet: the role of farmer's practices and gene flow [Elektronische Daten] [Ghayas Lakis, Athman Ousmane, Douka Sanoussi, Abdoulaye Habibou, Mahamane Badamassi, Françoise Lamy, Naino Jika, Ramatou Sidikou, Toudou Adam, Aboubakry Sarr, Anne Luxereau, Thierry Robert] In the Sahel of Africa, farmers often modify their cultivation practices to adapt to environmental changes. How these changes shape the agro-biodiversity is a question of primary interest for the conservation of plant genetic resources. We addressed this question in a case study on pearl millet in south western Niger where farmers used to cultivate landraces with different cycle length in order to cope with rain uncertainty. Early and late landraces were previously grown on distant fields. Nowadays, mostly because of human population pressure and soil impoverishment, it happens that the two types of landraces are grown on adjacent fields, opening the question whether gene flow between them may occur. This question was tackled through a comparative study among contrasting situations pertaining to the spatial distribution of early and late landraces. Observations of flowering periods showed that pollen flow between the two landraces is possible and has a preferential direction from early to late populations. Springer Science+Business Media B.V., 2012 Gene flow nationallicence Landraces nationallicence Farmers' practices nationallicence Pearl millet nationallicence Agro-biodiversity nationallicence Flowering nationallicence Microsatellite nationallicence Genetic diversity nationallicence Genetic resources nationallicence Lakis Ghayas Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut Ousmane Athman Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut Sanoussi Douka Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut Habibou Abdoulaye Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut Badamassi Mahamane Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut Lamy Françoise Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut Jika Naino Institut National de la Recherche Agronomique du Niger, Niamey, Niger aut Sidikou Ramatou Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut Adam Toudou Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut Sarr Aboubakry Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut Luxereau Anne CNRS-Muséum National d'Histoire Naturelle, Laboratoire Eco-anthropologie-Ethnobiologie, Paris, France aut Robert Thierry Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut Genetica Springer Netherlands 139/11-12(2011-12-01), 1367-1380 0016-6707 139:11-12<1367 2011 139 10709 https://doi.org/10.1007/s10709-012-9633-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-012-9633-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lakis Ghayas Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut NATIONALLICENCE 700 1- Ousmane Athman Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Sanoussi Douka Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Habibou Abdoulaye Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Badamassi Mahamane Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Lamy Françoise Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut NATIONALLICENCE 700 1- Jika Naino Institut National de la Recherche Agronomique du Niger, Niamey, Niger aut NATIONALLICENCE 700 1- Sidikou Ramatou Faculté des Sciences, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Adam Toudou Faculté d'Agronomie, Université Abdou Moumouni, Niamey, Niger aut NATIONALLICENCE 700 1- Sarr Aboubakry Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut NATIONALLICENCE 700 1- Luxereau Anne CNRS-Muséum National d'Histoire Naturelle, Laboratoire Eco-anthropologie-Ethnobiologie, Paris, France aut NATIONALLICENCE 700 1- Robert Thierry Laboratoire Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405, Orsay cedex, France aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/11-12(2011-12-01), 1367-1380 0016-6707 139:11-12<1367 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer