By CC Ainsworth
Necessary for all plant biologists, it is a attention-grabbing and thorough exam of these components which have an effect on the intercourse selection of plant species, describing the entire major periods of plant with unisexual plants hermaphrodite, monoecious and
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Additional info for Sex Determination in Plants
Another mechanism by which plant MADS-factor/accessory factor complexes may act to regulate gene transcription is by B. CAUSIER, I. WEIR AND B. DAVIES 19 influencing the architecture of the target gene promoter. In the case of SRF, interaction with the ternary complex factor Elk-1 at the SRE, alters the degree of DNA bending (Sharrocks and Shore, 1995). Finally, TCFs may function to mediate the DNA-binding specificity of a particular MADSbox dimer. 1). This suggests that the numerous possible combinations of different MADSbox factors which can form DNA-binding dimers, may not offer new DNA-binding specificities.
More biologically plausible are situations in which both these advantages to females are present simultaneously, that is, both the quantity and quality of seeds are higher. A population of cosexes with selfing rate S and inbreeding depression 50% would require an increase in fertility of 1—S. This shows that, even if inbreeding depression is rather intense, a large increase in female fertility is always required unless the selfing rate is high. Similarly, males can invade only if their fertility is doubled (K>1) compared with an outcrossing initial cosexual form.
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