Beaucephus
Active member
i had 1, but it ran away.
This plant appears to me to exhibit classic sativa structure. Concur?
It is amazing to me that rooted cuttings from the same mother occasionally take on unique traits. A little mind boggling.
Been watching ' How the Universe works' and equally boggle worthy for me has been the recent advancements in science to quantify the speed of gravity, detect gravitational waves, sub-atomic neutrinos having mass(gravity) and the origins of gamma ray bursts.
Back on earth and relevant to the plant shown, .... the paper below may lend credence to ratchet theory but I believe dismisses the idea dudding (extinction) will be the absolute end result. A good amount of intra-plant diversity was found so the choice is ours which mutations we wish to propagate, Thoughts?
Cannabis is typically propagated using stem cuttings taken from mother plants to produce genetically uniform propagules. However, producers anecdotally report that clonal lines deteriorate over time and eventually produce clones with less vigour and lower cannabinoid levels than the original mother plant. While the cause of this deterioration has not been investigated, one potential contributor is the accumulation of somatic mutations within the plant. To test this, we used deep sequencing of whole genomes (>50x) to compare the variability within an individual Cannabis sativa cv. “Honey Banana” plant sampled at the bottom, middle and top. We called over 6 million sequence variants based on a reference genome and found that the top had the most by a sizable amount. Comparing the variants among the samples uncovered that nearly 600K (34%) were unique to the top while the bottom only contained 148K (12%) and middle with 77K (9%) unique variants. Bioinformatics tools were used to identify mutations in critical cannabinoid/terpene biosynthesis pathways. While none were identified as high impact, four genes contained more than double the average level of nucleotide diversity (π) in or near the gene. Two genes code for essential enzymes required for the cannabinoid pathway while the other two are in the terpene pathways, demonstrating that mutations were accumulating within these pathways and could influence their function. Overall, a measurable number of intra-plant genetic diversity was discovered that could impact long-term genetic fidelity of clonal lines and potentially contribute to the observed decline in vigour and cannabinoid content.
https://www.biorxiv.org/content/10.1101/2021.02.11.430823v3.full.pdf
Rico - Buddy! I thought I lost you. I've long been a proponent of what I call genetic or DVD drift in cuttings, however I have suffered a small amount of ridicule from some experts on ICmag for this assertion.
In other news I'm struggling with my big computer (24 GB RAM, 64 bit) that I use for interface with my scope. After running well since 2010 windows 7 pro has crashed. I managed to open in safe mode and (too late I know) tried to clone a system image but the command is not even there. I have a system image from 2010 but that will not include my software installs since then. Oy oy. I fear a clean install of everything upcoming. Right now I'm backing up hours of files.
Should I go Windows 10?
Rico - Buddy! I thought I lost you.
I've long been a proponent of what I call genetic or DVD drift in cuttings, however I have suffered a small amount of ridicule from some experts on ICmag for this assertion.
I like the surprises.
Giving a cutting is going to express slightly different genetics than the mother, if I remove the top from the plant. Would the clone be identical? Would the genetics of the plant change? Perhaps it’s more environment and searching for light?