Genetic Drift..Population genetics.. mutations..

[darwinsbulldog]

VenturaHwy - I started a project looking for purple plants with pink pistils and ended up finding interesting mutants. This is a hobby for me. The plant is a bit slow growing, but would be great for super stealthy grows if it was stable in seed form. The leaves are dark green and textured, not like normal plants at all. The flowers even have fine wispy pistils that are barely visible so the flowers look mostly green. The smell and high are also nice. I guess I am keeping it because it is unique and beautiful.

BTW the leaves do not curl or bunch, they unfold as they grow straight out the top of the plant. She's designed to be this way, not reacting. I know this because her sisters grew out of it or even reveged out of this expression. Then again it could also be her sisters grew out of a virus? Either way this thing might not ever pan out. I can't get her to clone.

nice stuff! i hope to one day find a mutant leaf form of marijuana like this or ducksfoot etc. would be pretty cool!

 

[yoss33]

Damn, if I had such a mutant... I wouldn't have to hide in the bush - I'd grow it right in front of people's eyes and hardly anyone will dig this is the drug marihuana plant.

 

[darwinsbulldog]

lol thats it

 

[Texicannibus]

I thought that all traits was passed down as either dominant or non dominant is that wrong? Are you saying that a truebreeding female passes all desirable traits? Im not sure I understand why you would cube if thats the case. It would seem by my understanding of the punnet squares the best first generation of a cross would produce 3/4 ideal plants with 1/4 being towards the less desirable parent.. is that wrong? Sorry guys Im sure most of my post seem like a total idiot ... I promise you I am not and am more than willing to accept that I may be completely wrong in my understanding of these things as my grip on them is not to great atm .... trying to improve it though and appreciate the help.

Ok I see now how the first generation would throw the dominant traits 100% of the time its inbreeding its offspring that produces the discrepancies in the f2 generation.. guess I was really high lol my bad and apoligies

I've seen a female flower put out five stamens instead of two pistls. Life experience will give you many mutants... take note... and possibly clones!



The word is recessive. Look up the definition of truebreeding on f'n GOOGLE.

Why is this so hard? I don't understand your pressing of people to press knowledge most have to pay for on someone who doesn't bother to read up, let alone pay tuition.

Geesh man why dont you troll somewhere else if you have nothing more than insults.

 

[Texicannibus]

lol what is recessive btw mr mean mustard ... oh yea its genes that aren't dominant. LOL

 

[VenturaHwy]

VenturaHwy - I started a project looking for purple plants with pink pistils and ended up finding interesting mutants. This is a hobby for me. The plant is a bit slow growing, but would be great for super stealthy grows if it was stable in seed form. The leaves are dark green and textured, not like normal plants at all. The flowers even have fine wispy pistils that are barely visible so the flowers look mostly green. The smell and high are also nice. I guess I am keeping it because it is unique and beautiful.

BTW the leaves do not curl or bunch, they unfold as they grow straight out the top of the plant. She's designed to be this way, not reacting. I know this because her sisters grew out of it or even reveged out of this expression. Then again it could also be her sisters grew out of a virus? Either way this thing might not ever pan out. I can't get her to clone.

Those are really cool to look at 3dDream, I see why you kept it. I kept my plant for many years also, it would stop showing most of the symptoms when I cut the lights back to 12 hours.

You are adding to the knowledge here when you put up such great pictures...

 

[mean mr.mustard]

Troll?

You're on your own.

 

[Texicannibus]

If these one line responses and putdowns is all Im missing ... I can deal with it apoligies that you found my format and eagerness to learn dis-satisfying.

 

[mean mr.mustard]

A basic foundation is what you're missing.

Screw me for trying to man up and be the guy to tell you.

I would have liked to help you as many choose not to learn and I mistook you for someone else... somebody that might actually learn.

 

[Texicannibus]

Im working on that? If you had bothered to read the entire post you would have seen I had found the error of my ways before anyone had even seen the post... wow man you are something else... I think anyone with a open mind and reading comprehension can see I have a eagerness to learn.. thats more than a willingness.

The idea of this thread if you will look at the original post(im not sure english is your first language so maybe there is some language barrier here) I believe you will see that I posted this thread for noob questions about genetics... not experts consulting experts although I have no issue with that and would enjoy trying to understand it...

 

[Texicannibus]

Just to answer your question of why I asked about true breeding cannabis instead of searching it on google.... Id love to hear real life experiences with the plant we all know and love. I dont want to sift through all definitions of true breeding and figure out how they relate to cannabis when Im sure a nice member here can drop the useable/known definition as it relates to cannabis in a few words.. I realize its the lazy approach but my main goal here is to ask the noobie questions and get the answers in a understandable way so that this community may benefit from it.

 

[englishrick]

tex,,,you know what im like bro,,,an if you dont im sure some1 will tell you,,,,

trust me on this bro,,,,the only way to get what you want is to learn under peeps like MrMusterd,,,,he said the same things to me a few months back,,,,its actualy good advice

be humble bro,,,an you will get what you want,,,,,,

read Robert Allard`s Principels of plant breeding,,,,ive got scans of the whole book but i cant find more than 2 chappters on my laptop at the min,,,,,ive hid them somewhere an i cant find them,,,if you can just buy the book,,,its 80quid but its worth every penny

 

[DocLeaf]

trust me on this bro,,,,the only way to get what you want is to learn under peeps like MrMusterd,,,,he said the same things to me a few months back,,,,its actualy good advice

be humble bro,,,an you will get what you want,,,,,,

Less attitude from the above would make it easier to learn from rick!

Did you ever listen to the teacher that dissed you in class? (cause i n i spat on them!)

There's lots of good info. on this thread,, but let's please keep it civil.. least then on-lookers (lurkers) can also learn something from the rest of us 'know it alls'

One love

 

[Texicannibus]

Actually I understand what hes saying and I will attempt to get the book asap ... but surely anyone with genetic questions shouldnt have to read a book to ask a question? I wish the book was more specific instead of being a broad plant breeding book but will as I said attempt to get and read it.

 

[englishrick]

i was also that kid who had blazing rows with teachers,,,,i was in the special class because of it,,,i wouldnt even do homework as a standard,

i know MrMustard is Mean,,,but i cant help the fact that i have learnt off him ,,,i cant help the fact that ive got a "mean" teacher at min,,,,i wish i had sam as my tutor but that aint going to happen,,,the last year in high school was allways better than the first..

did i sound bad in my last post??,,,if i did im sorry,,im gona have to check myself

[edit],,,,your my teacher too doc,,,,,,,i didnt know sh1t beffore i joined icmag,,,,thats why my sig says "IC SAVED ME LIFE",

Robbert Clarke said,,,,"The best breeders set high goals of limited scope and adhere to their ideals." ...,,,i fuk1n love that Quote

 

[Texicannibus]

Thanks guys a ton really for all the contributions. I plan on picking up a couple books in the very near future probably about 2 weeks. Id like to learn the basics a bit more before I ask anymore stupid (possibly) questions... lol. I still would like this thread to be a place to come to ask 'stupid' questions though. Id just like to not be the one asking them lol

 

[englishrick]

its not stupid to have pashion without understanding,,,thats love bro,,i respect love,,,say what you want,,its all love

Mr Mustard helped me,,,doc helped me,,,i love all that sh1z,,bring it on

 

[Texicannibus]

Thanks Mr Alkaline feel free to drop in anytime...

This was posted earlier today..


University of California - Davis (2010, March 25). Plant breeding breakthrough: Offspring with genes from only one parent. ScienceDaily.

University of California - Davis. "Plant Breeding Breakthrough: Offspring With Genes from Only One Parent." ScienceDaily 25 March 2010. 22 May 2010 <http://www.sciencedaily.com* /releases/2010/03/100324142012.htm>.

Plant Breeding Breakthrough: Offspring With Genes from Only One Parent
ScienceDaily (Mar. 25, 2010) — A reliable method for producing plants that carry genetic material from only one of their parents has been discovered by plant biologists at UC Davis. The technique, to be published March 25 in the journal Nature, could dramatically speed up the breeding of crop plants for desirable traits.

The discovery came out of a chance observation in the lab that could easily have been written off as an error.

"We were doing completely 'blue skies' research, and we discovered something that is immediately useful," said Simon Chan, assistant professor of plant biology at UC Davis and co-author on the paper.

Like most organisms that reproduce through sex, plants have paired chromosomes, with each parent contributing one chromosome to each pair. Plants and animals with paired chromosomes are called diploid. Their eggs and sperm are haploid, containing only one chromosome from each pair.

Plant breeders want to produce plants that are homozygous -- that carry the same trait on both chromosomes. When such plants are bred, they will pass the trait, such as pest resistance, fruit flavor or drought tolerance, to all of their offspring. But to achieve this, plants usually have to be inbred for several generations to make a plant that will "breed true."

The idea of making a haploid plant with chromosomes from only one parent has been around for decades, Chan said. Haploid plants are immediately homozygous, because they contain only one version of every gene. This produces true-breeding lines instantly, cutting out generations of inbreeding.

Existing techniques to make haploid plants are complicated, require expensive tissue culture and finicky growing conditions for different varieties, and only work with some crop species or varieties. The new method discovered by Chan and postdoctoral scholar Ravi Maruthachalam should work in any plant and does not require tissue culture.

Ravi and Chan were studying a protein called CENH3 in the laboratory plant Arabidopsis thaliana. CENH3 belongs to a group of proteins called histones, which package DNA into chromosomes. Among the histones, CENH3 is found only in the centromere, the part of the chromosome that controls how it is passed to the next generation.

When cells divide, microscopic fibers spread from each end of the cell and attach at the centromeres, then pull the chromosomes apart into new cells. That makes CENH3 essential for life.

Ravi had prepared a modified version of CENH3 tagged with a fluorescent protein, and was trying to breed the genetically modified plants with regular Arabidopsis. According to theory, the cross should have produced offspring containing one mutant gene (from the mother) and one normal gene (from the father). Instead, he got only plants with the normal gene.

"At first we threw them away," Chan said. Then it happened again.

Ravi, who has a master's degree in plant breeding, looked at the plants again and realized that the offspring had only five chromosomes instead of 10, and all from the same parent.

The plants appear to have gone through a process called genome elimination, Chan said. When plants from two different but related species are bred, chromosomes from one of the parents are sometimes eliminated.

Genome elimination is already used to make haploid plants in a few species such as maize and barley. But the new method should be much more widely applicable, Ravi said, because unlike the process for maize and barley, its molecular basis is firmly understood.

"We should be able to create haploid-inducing lines in any crop plant," Ravi said. Once the haploid-inducing lines are created, the technique is easy to use and requires no tissue culture -- breeders could start with seeds. The method would also be useful for scientists trying to study genes in plants, by making it faster to breed genetically pure lines.

After eliminating half the chromosomes, Chan and Ravi had to stimulate the plants to double their remaining chromosomes so that they would have the correct diploid number. Plants with the haploid number of chromosomes are sterile.

The research also casts some interesting light on how species form in plants. CENH3 plays the same crucial role in cell division in all plants and animals. Usually, such important genes are highly conserved -- their DNA is very similar from yeast to whales. But instead, CENH3 is among the fastest-evolving sequences in the genome.

"It may be that centromere differences create barriers to breeding between species," Chan said. Ravi and Chan plan to test this idea by crossing closely-related species.

The work was supported by a grant from the Hellman Family Foundation.

Quoted from linked article:

So do you guys think this will equal a great breakthrough in respects to cannabis breeding? Sams is supposed to reply about it I believe hes waiting on the actual scientific articles release.

 

[DocLeaf]

Thanks guys a ton really for all the contributions. I plan on picking up a couple books in the very near future probably about 2 weeks. Id like to learn the basics a bit more before I ask anymore stupid (possibly) questions... lol. I still would like this thread to be a place to come to ask 'stupid' questions though. Id just like to not be the one asking them lol

As MeanMrMustard or someone else said in this thread,, all the basics are online:

Start here:

http://en.wikipedia.org/wiki/Genetics

http://en.wikipedia.org/wiki/Genetic_drift

As a "weed" cannabis soon learns to adapt IMO.

Hope this helps

 

[mean mr.mustard]

So do you guys think this will equal a great breakthrough in respects to cannabis breeding? Sams is supposed to reply about it I believe hes waiting on the actual scientific articles release.

You've stumped me.... if it's actually repeatable I'm sure there would be a huge market out there for "clonal seeds".

I'd still like to do it the old fashioned way but it does seem that people just like to cut to the chase to one end or another

So, in short, possibly....?

Good article!