After allowing 24 hours for mating, females, which at this point could not be differentiated as sexual or asexual, were isolated individually in wells of a multiwell plate (Nunc™) with 150 µl of culture medium.
After allowing 24 hours for mating, females, which at this point could not be differentiated as sexual or asexual, were isolated individually in wells of a multiwell plate (Nunc™) with 150 μl of culture medium.
Some fungal species can be differentiated based on sexual compatibility of their members, which are in turn reproductively isolated from the other species (i.e. the biological species concept).
A small sample of sexuals with Lco morphotype collected from A. f. cirsiiacantoides appeared to be strongly differentiated from other sexuals as well as all thelytokous groups.
In mammals, sexually differentiated hormone production begins at the earliest stages of gonadal development and produces marked sexual dimorphism in brain and genitals by early post-natal life (for review, see [ 1, 2]).
Early sexual differentiation of the developing brain is vulnerable to endocrine disruption by phytoestrogens which modify the organization of sexually differentiated neural pathways.
Compared to recently isolated populations, incipient species may be so differentiated in their reproductive or sexual characters that a sexually antagonistic trait will not be effective in another population.
The guppy from the Cumaná region (within the Cariaco drainage) of eastern Venezuela has been previously described as a case of incipient speciation driven by sexual selection, significantly differentiated in sexual colouration and body shape from the common guppy, Poecilia reticulata.
The Mucoromycotina R. oryzae forms simple zygospores during sexual reproduction, but differentiated multi-cellular sporangia for asexual reproduction.
It is less common than, and should be differentiated from, other forms of sexual precocity such as premature thelarche and exaggerated adrenarche.
