title: Inheritance of progeny sex ratio in Urtica dioica.
abstract: Seed samples collected from female Urtica dioica plants in the field showed considerable inter-family variation in the sex ratio (faction of males). To investigate the inheritance pattern of the sex ratio trait, crosses were performed between individual male and female plants from different sex ratio families. Our results suggest, at least for the families studied here, that maternal parents strongly contribute to the variation in the primary sex ratio. Furthermore, progeny sex ratios from reciprocal crosses were significantly different and resembled the sex ratios produced by their maternal parents. We discuss the possible mechanisms underlying maternal control.
authors.affiliation: Institute of Biology Leiden, Leiden University, Leiden, The Netherlands.
authors.forename: G A
authors.initials: GA
authors.lastname: Glawe
authors.forename: T J
authors.initials: TJ
authors.lastname: De Jong
mesh_terms: D005075:Biological Evolution; D003433:Crosses, Genetic; D040582:Inheritance Patterns / Q000235:genetics*; D009426:Netherlands; D011058:Pollen / Q000502:physiology; D012639:Seeds / Q000166:cytology / Q000502:physiology; D012744:Sex Ratio; D026982:Urtica dioica / Q000235:genetics* / Q000502:physiology