To elucidate the mechanism(s) underlying dioecious flower development, the present study analyzed a SUPERMAN (SUP) homolog, SlSUP, which was identified in Silene latifolia. The sex of this plant is determined by heteromorphic X and Y sex chromosomes. It was revealed that SlSUP is a single-copy autosomal gene expressed exclusively in female flowers. Introduction of a genomic copy of SlSUP into t...

BACKGROUND Anther-smut fungi belonging to the genus Microbotryum sterilize their host plants by aborting ovaries and replacing pollen by fungal spores. Sibling Microbotryum species are highly specialized on their host plants and they have been widely used as models for studies of ecology and evolution of plant pathogenic fungi. However, most studies have focused, so far, on M. lychnidis-dioicae...

Összeállításunkban az Északi-Cserehát és a Felső-Bódva-völgy területéről 1995 2020 között gyűjtött, korábbi publikációinkból kimaradt adatainkat közöljük, 123 fajra vonatkozóan. Publikáljuk néhány, területről eddig nem közölt, vagy ritka faj adatát (pl. Artemisia annua, Genista pilosa, Ranunculus flammula, Scorzonera purpurea, Silene noctiflora), illetve kitérünk olyan adathiányos, de gyakoribb...

BACKGROUND AND AIMS Pollen and seed dispersal in herbaceous insect-pollinated plants are often restricted, inducing strong population structure. To what extent this influences mating within and among patches is poorly understood. This study investigates the influence of population structure on pollen performance using controlled pollinations and genetic markers. METHODS Population structure w...

Here we compare gene orders on the Silene latifolia sex chromosomes. On the basis of the deletion mapping results (11 markers and 23 independent Y chromosome deletion lines used), we conclude that a part of the Y chromosome (covering a region corresponding to at least 23.9 cM on the X chromosome) has been inverted. The gradient in silent-site divergence suggests that this inversion took place a...