naa a22 4500 510730817 CHVBK 20180411082952.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11295-013-0623-y doi (NATIONALLICENCE)springer-10.1007/s11295-013-0623-y Jatropha curcas L. (Euphorbiaceae) exhibits a mixed mating system, high correlated mating and apomixis [Elektronische Daten] [Eduardo Bressan, Alexandre Sebbenn, Renato Ferreira, Tseng Lee, Antonio Figueira] The hierarchical mating system among and within fruits of Jatropha curcas was investigated in a base population using five microsatellite loci, employing mixed mating and correlated mating models. Open-pollinated fruits were collected from 15 randomly selected seed trees, sampling seven fruits per tree for a total of 21 seeds from each tree. We detected multilocus genotypes identical to the mother tree in 13% of offspring, implying the occurrence of apomixis in J. curcas. The presumed apomictic individuals were excluded from the analysis of the remaining results. Evidence of substantial selfing was provided by the average multilocus outcrossing rate (t m = 0.683), showing that the species exhibits a mixed mating system. The outcrossing rate showed a large variation among seed trees, ranging from 0.21 to 1.0, indicating that the species is not self-incompatible. Significant differences were detected between the multilocus and the single locus outcrossing rates (t m − t s = 0.347) that suggested mating among related individuals, possibly because of the presence of individuals from the same progeny (sibs) in the base population. The multilocus paternity correlation was extremely high for the population (r p(m) = 0.999), indicating that the progenies were manly composed of full-sibs. As a consequence of selfing and a high paternity correlation, the co-ancestry coefficient within the progeny was higher (Θ = 0.369) than expected for panmictic populations. Our results indicated that J. curcas produces seeds asexually by apomixis and sexually by a mixed mating system, combining selfing and outcrossing. Springer-Verlag Berlin Heidelberg, 2013 Effective population size nationallicence Mating system analysis nationallicence Microsatellite loci nationallicence Tropical tree nationallicence Bressan Eduardo Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut Sebbenn Alexandre Seção de Melhoramento e Conservação Genética Florestal, Instituto Florestal de São Paulo, Piracicaba, São Paulo, Brazil aut Ferreira Renato Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut Lee Tseng Centro de Ciências Agrárias, Universidade Federal de São Carlos, Araras, São Paulo, Brazil aut Figueira Antonio Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut Tree Genetics & Genomes Springer Berlin Heidelberg 9/4(2013-08-01), 1089-1097 1614-2942 9:4<1089 2013 9 11295 https://doi.org/10.1007/s11295-013-0623-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11295-013-0623-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bressan Eduardo Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut NATIONALLICENCE 700 1- Sebbenn Alexandre Seção de Melhoramento e Conservação Genética Florestal, Instituto Florestal de São Paulo, Piracicaba, São Paulo, Brazil aut NATIONALLICENCE 700 1- Ferreira Renato Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut NATIONALLICENCE 700 1- Lee Tseng Centro de Ciências Agrárias, Universidade Federal de São Carlos, Araras, São Paulo, Brazil aut NATIONALLICENCE 700 1- Figueira Antonio Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, São Paulo, Brazil aut NATIONALLICENCE 773 0- Tree Genetics & Genomes Springer Berlin Heidelberg 9/4(2013-08-01), 1089-1097 1614-2942 9:4<1089 2013 9 11295 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer