ChaoticGenetics

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ChaoticGenetics

ChaoticGenetics

@ChaoticGenetics

Capsicum genetics and breeding. To curate and foster genetic diversity. Strong background in molecular biology.

California Bay Area Katılım Temmuz 2017
627 Takip Edilen578 Takipçiler
Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
Two fake follower accounts in the last few days. I wonder if I made it onto someone's list.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
Now, this is clunky as all heck and I don't expect it to be used well by respondents... but still, there is a way]
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
How to make a twitter poll with more than four options.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Hahah, yeah. Sometimes it's quicker to wait rather than go through the pain of parallallizing something. I usually use bash or python to break up work and run it in parts with MPI.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
@ChaoticGenetics Scripted parameter scans is/are(?) exactly what I'm doing. Your cluster may be helpful. I'll need to think a little bit about the consequence of that architecture.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
I was testing out Jellyfish (ver 2.2.6) on a random simulated genome and found some quirks. Running the program with 4 threads was much slower than 1 or 2. The computer was otherwise idle for all runs. Counter-len (used in structuring an internal hash) showed strong effects.
Dr. Darren Abbey tweet mediaDr. Darren Abbey tweet media
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
@ChaoticGenetics As of last June the species count was up near 4700. I expect it'll be above 5k the next time I run my scraper. I want to automate the construction of a phylogeny of those genome sequences. 5k^2 comparisons... so I want each step to take as little time as possible.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Cool! Can you script a 'parameter' scan? If you want to try it on my DIY cluster DM me and I will set up ssh access for you. The headnode is a dual socket Zeon server board with 24 GB.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
@ChaoticGenetics Basically I want to find the fastest combination of settings for the range if genome sizes I'm working with (all published fungal genomes accessible via public databases), so I won't get a surprise 20 hour computation step.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Cool! What is limiting the speed? CPU/memory/IO? Also, could you 'parallelize' it further by splitting your genome into multiple chunks and running them concurrently?
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
As the "kmer length" gets larger, eventually most possible kmers are found at 0 or 1 times. For the largest kmers, I could thus use a single bit to keep track of their counts.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@sjohnson4888 @SeedSciSoc Maybe temp.? Bottom heat helps. Oddly enough, these seeds are germinating under far from ideal conditions - had to ask a lot of them for photography purposes.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Hahaha, yeah. Solid basic knowledge and some 'research' skill (google-fu) - interesting phenomenon. I consider it a good thing too.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
The internet makes me look much smarter than I am in person with regards to identifying random plants. I'm ok with this condition.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@AgroBioDiverse @kctomato Woah, yeah. Surprised, sounds the the seeds at the World Veg. Center in Taiwan are dead and the Embrapa Clima Temperado is not able to provide seeds either.
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
C. lanceolatum finally germinated! This one took almost a month. Not sure where these specific seeds are originally from but the species is native to Central America, spanning Oxaca/Veracruz Mexico to Honduras #biodiversity #capsicum #plants #peppers
ChaoticGenetics tweet media
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Langholm chilli club
Langholm chilli club@ClubLangholm·
Wow one of our members chilli plants blooming like you wouldn’t believe :)
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Cool, hahah yeah, my problem exactly... Can't stop tinkering and/or germinating every seed I can get my hands on.
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
@ChaoticGenetics I'm hoping to do some paired trials this warm season. In the box vs. in the sun. I suppose I'd have to not tinker with the setup during the trial for it to perform informative...
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
I finally got my basement lab area sorted enough so I could build a lighbox around the plants I've been overwintering. The white surface of the plastic reflects back more light than the aluminum foil that is often used for this purpose.
Dr. Darren Abbey tweet mediaDr. Darren Abbey tweet media
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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@thebiologistisn Thanks for the shout out! One of these days I will get around to a good controlled experiment and measure the effect on generation time. Always seem to have too many varieties... Hard to block out time and space to grow a bunch of identical plants!
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Dr. Darren Abbey
Dr. Darren Abbey@thebiologistisn·
Though I don't have some of the technical aspects yet that are seen in other #SpeedBreeding projects (ex: twitter.com/ChaoticGenetic…), it probably doesn't take much to see benefits.
ChaoticGenetics@ChaoticGenetics

Growthchamber 'brains'. Top to bottom: #Odroid takes timelapse video, #RaspberryPi monitors temp. & controls fans, #DIY TIP120 board switches fan power for Pi, heat mat power supply. Planning a hardware/cable refactor over spring break. #speedbreeding #linux #IoT #plants

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ChaoticGenetics
ChaoticGenetics@ChaoticGenetics·
@bhive01 Hahaha, IR to film continuous timelapse with constant light.
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