caa a22 4500 477134750 CHVBK 20180405111714.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002974304592 doi (NATIONALLICENCE)springer-10.1023/A:1002974304592 Genetic variation in the agamic species complex of Pennisetum section Brevivalvula (Poaceae) from West Africa: ploidy levels and isozyme polymorphism [Elektronische Daten] [G.H. Schmelzer, J.-F. Renno] Some characteristics of the species complex Pennisetum section Brevivalvula are polyploidy and apomixis. Four euploidy levels (x = 9) were assessed by DAPI-flow cytometry for 304 plants of the section, distributed among five species: P. hordeoides (2n = 36, 54), P. pedicellatum (2n = 36, 45, 54), P. polystachion (2n = 18, 36, 45, 54), P. setosum (2n = 54), and P. subangustum (2n = 18, 36, 54). The geographical distribution of the ploidy levels seems to be related to major ecological zones of West Africa. The hilly regions displayed a higher ploidy diversity than the others; diploid populations of the annual species P. polystachion and P. subangustum were found. Genotypic variation expressed by isozyme polymorphism did not show any significant difference between the diploid, sexual populations and the polyploid, apomictic populations of these two species. Kluwer Academic Publishers, 1997 apomixis nationallicence Brevivalvula nationallicence flow cytometry nationallicence isozyme polymorphism nationallicence Pennisetum nationallicence polyploidy nationallicence Schmelzer G.H. Dpfv - Orstom, Genetic Laboratory, B.P. 11416, Niamey, Niger aut Renno J.-F Orstom, Genetic Laboratory, B.P. 11416, Niamey, Niger aut Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 23-29 0014-2336 96:1<23 1997 96 10681 https://doi.org/10.1023/A:1002974304592 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002974304592 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schmelzer G.H. Dpfv - Orstom, Genetic Laboratory, B.P. 11416, Niamey, Niger aut NATIONALLICENCE 700 1- Renno J.-F Orstom, Genetic Laboratory, B.P. 11416, Niamey, Niger aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/1(1997-07-01), 23-29 0014-2336 96:1<23 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer