caa a22 4500 47713307X CHVBK 20180405111709.0 cr unu---uuuuu 170330e19970301xx s 000 0 eng 10.1023/A:1002949606450 doi (NATIONALLICENCE)springer-10.1023/A:1002949606450 Variation of gynogenesis ability in onion (Allium cepa L.) [Elektronische Daten] [E. Geoffriau, R. Kahane, M. Rancillac] Onion varieties from Northern-Europe, Eastern-Europe, Southern-Europe and the U.S. including populations, inbreds, synthetics and clones were tested for their gynogenesis ability for three years: 1993-1995. Embryos were induced in Petri dishes using in vitro culture of flower buds. Embryo rate, regeneration rate, survival rate, embryo quality and ploidy level of regenerants are described. Important genotype and variety effects are pointed out; embryo production and plant regeneration ranged from 0 to 17% and from 0 to 11% of inoculated flowers, respectively. Highest results were obtained with inbreds and synthetics for embryo production as well as for plant regeneration. Populations expressed various responses which were generally low. Geographic origin and year effects were covered by the effects of genetic structure of varieties and specific genotype of donor plant. Among regenerants, 80% were haploid and 13% were spontaneous diploid. No relation has been found between general quality and ploidy level of regenerants. The choice of plant material for successful gynogenesis in onion is discussed. Kluwer Academic Publishers, 1997 Allium cepa nationallicence genetic diversity nationallicence gynogenesis nationallicence haploid nationallicence onion nationallicence Geoffriau E. AGROCINQ, 17 av. D. Daurat, BP112, F31703, Blagnac Cédex, France aut Kahane R. COOPD'OR, RN 5, F21130, Villers-les-Pots, France aut Rancillac M. INRA, Station de Génétique et d'Amélioration des Plantes, BV1540, F21034, Dijon Cédex, France aut Euphytica Kluwer Academic Publishers 94/1(1997-03-01), 37-44 0014-2336 94:1<37 1997 94 10681 https://doi.org/10.1023/A:1002949606450 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002949606450 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Geoffriau E. AGROCINQ, 17 av. D. Daurat, BP112, F31703, Blagnac Cédex, France aut NATIONALLICENCE 700 1- Kahane R. COOPD'OR, RN 5, F21130, Villers-les-Pots, France aut NATIONALLICENCE 700 1- Rancillac M. INRA, Station de Génétique et d'Amélioration des Plantes, BV1540, F21034, Dijon Cédex, France aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 94/1(1997-03-01), 37-44 0014-2336 94:1<37 1997 94 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer