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"TRICHOMES are widespread in plants and develop from surface cells on different tissues. They have many forms and functions, from defensive spines to physical barriers that trap layers of air to insulate against desiccation, but there is growing evidence that trichomes can also have developmental roles in regulating flower structure." https://lnkd.in/dBtGfqQ View in LinkedIn

FLORAL MORPHOLOGY REGULATION. "One point that requires particular attention is the question of how the range of floral organ morphology is generated downstream of the otherwise highly conserved ABCE program. Current data highlight the importance of gene duplication as a source of variation in aspects of the floral program, while shifts in gene expression appear to be a major factor in morphological evolution." https://lnkd.in/dVXk7jP View in LinkedIn

FLORAL TRANSITIONS. "The evolution of zygomorphic flowers from actinomorphic ancestors has clearly occurred many times independently across the angiosperms." https://lnkd.in/dVXk7jP View in LinkedIn

AMOEBA'S ENDOSYMBIONT GENES. "Many of these genes encode proteins that function in photosynthesis, and presequences that target their import into the cyanelle have been identified. Hence the posited gene-transfer events that accompanied mitochondrial and chloroplast domestication are apparently being recapitulated in Paulinella." https://lnkd.in/ebVhXPf View in LinkedIn

PARALOGS AND MORPHOLOGY. "The presence of gene paralogs may seem to correlate with novel aspects of morphology, but since paralogs can be retained as a result of either functional conservation (via subfunctionalization) or innovation (neofunctionalization), such correlation is a poor proxy for direct functional studies." https://lnkd.in/dVXk7jP View in LinkedIn

SEX GENES AND SPECIATION. "Postzygotic incompatability between nuclear and mitochondrial genomes or between multiple nuclear loci have both been shown to play a role in Saccharomyces species incompatibilities. Hence sex-related genes are integral to establishing species boundaries." https://lnkd.in/ebVhXPf View in LinkedIn

EUKARYOTIC SPECIATION. "A signature feature of eukaryotes is that they speciate, segregating into closely related populations that fail to respond to each other’s mating cues to form zygotes (prezygotic isolation) and/or form zygotes that fail to produce a viable next generation (postzygotic isolation)." http://cshperspectives.cshlp.org/content/6/3/a016154.full View in LinkedIn

PLASTID ELIMINATION. "In land plants, plastids are excluded from the sperm cell or are left behind in synergid cells during fertilization; mechanisms are again unknown." http://cshperspectives.cshlp.org/content/6/3/a016154.full View in LinkedIn

SPERM ORGANELLE ELIMINATION. "Notably, in the vertebrate examples, the sperm organelles enter the egg but are quickly and selectively eliminated in the zygote in a species-specific fashion." https://lnkd.in/ebVhXPf View in LinkedIn

ORGANELLE GENOME DESTRUCTION. "Although there is as yet no information on the molecules that exert mating-type uniparental control in most systems, the selective destruction of one set of organelle genomes has been shown in several disparate radiations." https://lnkd.in/ebVhXPf View in LinkedIn