Category: Uncategorized

STITCHED TOGETHER. "Such petal ‘Velcro’ is present in other Malvaceae and perhaps more broadly in other plant families, although it is not ubiquitous. This mechanism for physical association between separate organs to regulate flower shape and function is different from the usual organ shape control exerted through cell-to-cell communication and differential cell expansion within floral tissues." https://lnkd.in/dBtGfqQ View in LinkedIn

IMPACT OF TRICHOME SUPPRESSION. "Silencing a master regulator of petal trichomes, GhMYB-MIXTA-Like10 (GhMYBML10), by RNA interference (RNAi) suppressed petal trichome growth and resulted in flower buds forming into abnormal corkscrew shapes that exposed developing anthers and stigmas to desiccation damage." https://lnkd.in/dBtGfqQ View in LinkedIn

PETAL VELCRO. "We report here that the trichomes on petals of cotton, Gossypium hirsutum L., are essential for correct flower bud shape through a mechanical entanglement of the trichomes on adjacent petals that anchor the edges to counter the opposing force generated by asymmetric expansion of overlapping petals." https://lnkd.in/dBtGfqQ View in LinkedIn

"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

CYANOBACTERIUM ENGULFMENT. "During the 60 million years since the estimated onset of this conversion, the genome of the endosymbiont has undergone an estimated 75% reduction in size, and roughly 1% of the amoeba’s nuclear genes are of endosymbiont origin." https://lnkd.in/ebVhXPf View in LinkedIn

MORPHOLOGY AND GENE DUPLICATION. "Within this context of shifting gene expression patterns, there is also evidence for a multitude of independent gene duplication events. It can be quite difficult, however, to determine what significance such events have had for morphological evolution." https://lnkd.in/dVXk7jP View in LinkedIn