New York Chapter

About Us

The 34th Annual NY-TACF Meeting

October 4th and 5th
Syracuse, NY

Our Annual Meeting is on October 5 in Syracuse, NY. We welcome all members and prospective members to this important event. 

Meeting and hotel information can be found here:
https://www.esf.edu/chestnut/ny-tacf/index.php

You can register directly for the meeting here:
https://www.esf.edu/chestnut/ny-tacf/registration.php 

After submitting your registration, you will receive an email with the link to proceed with the payment. To reduce registration costs, ESF’s Chestnut Project chose to work with their inhouse platform from the College Foundation. This automatically includes a box to “Make this gift on behalf of an organization”. Do not click this box as this is not related to our meeting.
If you do not receive the confirmation email with payment information, you can click the following link:
https://www.esf.edu/chestnut/ny-tacf/payment.php 

The Bur Newsletter

In the latest issue of The Bur Fall 2024.

•  The October 5th Meeting to Highlight Advances, Updates, and Strategies
 District Directors Reports, What’s Happening Around NY
A Lawyer, an Optometrist, and an Improved Oxalic Acid Leaf Sensitivity Test that Correlates with Chestnut Blight Resilience
  ESF research updates

Donate

Donate here to assist with the SUNY ESF Biotechnology Program. Donations are tax-deductible to the full extent allowed by law. You can also donate directly on ESF’s webpage.

If you would like to donate by mail, please send your check made out to NY-TACF to:

NY-TACF C/O Treasurer Fran Nichols
302 Bateman Road
Laurens, NY 13796

Darling 58 American Chestnut Public Comment Period has Ended

Thank you to everyone who showed their support for the Darling 58 blight-tolerant American chestnut tree by submitting a comment to the USDA!

More information can be found on SUNY ESF’s American Chestnut Project.

An image of three transgenic American chestnuts inside a bur that's opened up.

Erik Carlson’s Interview on the Talking Biotech Podcast

Erik Carlson, an ESF graduate student, discussed the American Chestnut Research and Restoration Project on Talking Biotech Podcast. In November 2021, Erik published a paper in Molecular Plant Pathology on the new lines of transgenic American chestnuts developed with the win3.12 inducible promoter from poplar (Populus deltoides), which drives OxO expression. The oxalate oxidase gene from wheat confers elevated chestnut blight resistance in American chestnut. The podcast discusses the background of the project, where the project stands, and the regulatory environment of repatriating a forest with engineered trees.

Erik Carlson from New York plants a transgenic American chestnut seedling.

Pollination Workshop

ESF’s American Chestnut Research and Restoration Project discussed their outcrossing plan, as well as how to pre-bag American chestnut female flowers, how they collect transgenic Darling 58 pollen, what to do when pollen is received, how to perform controlled pollinations, and how to protect nuts from animals during a virtual pollination workshop.

The workshop, beginning with a 20 minute video, can be view through TACF’s Chestnut Chat Series event listing.

A NY-TACF member pollinates a female American chestnut flower with transgenic pollen.

The Village Chestnut Tree Podcast

All across North America and Europe, trees are under mortal threat. In The Village Chestnut Tree podcast, Emmett Hoops discusses American chestnuts and what’s being done to save them.

Latest Episode: Years End Ideas

The Chestnut Tree Video

Produced by the Templeton Foundation, one of our donors.

American Chestnut Seed Engraving

Sergey Jivetin creates elaborate engravings on the shells of seeds, including a series carved on American chestnut seeds depicting TACF’s American chestnut restoration efforts. On the first image below, the lower right-hand nut illustrates the American Chestnut Research and Restoration Project’s insertion of the Oxalate Oxidase gene into the American chestnut genome. The second image is a larger representation of that nut. To see more of Sergey Jivetin’s work, check out his website, Furrow Seed Engraving Project.

A chestnut has been carved with a chestnut tree, wheat, and DNA to represent the transgenic American chestnut containing oxalate oxidase. Carving done by Sergey Jivetin.

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It's time to get growing this week at Meadowview Research Farms! Alongside seeds harvested from Meadowview Research Farms, we’re also planting seeds sourced from partner pollination programs across the American chestnut range. The seeds have been stratified in coolers since being harvested last fall. The process of stratification in coolers mimic natural conditions of moisture and cool temperatures to prepare them for germination. Each seed is carefully placed into its designated pot based on its experiment, covered, and watered in—officially beginning the germination process! Come back and check out the progress soon!

#propagation #seeds #recurrentgenomicselection #americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch #prepping #smallstemassay #meadowviewresearchfarms
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For all you chestnut nerds out there, here's a great read!

From the abstract: Over a century after two introduced pathogens decimated American chestnut populations, breeding programs continue to incorporate resistance from Chinese chestnut to recover self-sustaining populations. Due to complex genetics of chestnut blight resistance, it is challenging to obtain trees with sufficient resistance and competitive growth. We developed high quality reference genomes for Chinese and American chestnut and leveraged large disease phenotype and genotype datasets to develop accurate genomic selection.

View the full abstract and download a PDF of the study here: www.biorxiv.org/content/10.1101/2025.01.30.635736v1.article-info
... See MoreSee Less

For all you chestnut nerds out there, heres a great read! From the abstract: Over a century after two introduced pathogens decimated American chestnut populations, breeding programs continue to incorporate resistance from Chinese chestnut to recover self-sustaining populations. Due to complex genetics of chestnut blight resistance, it is challenging to obtain trees with sufficient resistance and competitive growth. We developed high quality reference genomes for Chinese and American chestnut and leveraged large disease phenotype and genotype datasets to develop accurate genomic selection. View the full abstract and download a PDF of the study here: https://www.biorxiv.org/content/10.1101/2025.01.30.635736v1.article-info

3 CommentsComment on Facebook

I hope there is a real breakthrough in my lifetime

Is there any ai programs that you can feed the dna of each tree and ai will tell you which crosses will do best to increase resistance on each cross ?

Is it true that the American Truffle mycelium help the trees fend off blight?

Over the past few days, the Meadowview Research Farms team has been hard at work preparing pots to sow seeds for this year's experiments! These seeds play a vital role in Recurrent Genomic Selection, Small Stem Assays, and other trials. With a greenhouse capacity of over 5,000 trees, we’re ready for another year of innovative research. The pot-filling process begins with adding fertilizer to the growing media and filling each pot to the top, ensuring they are ready for sowing. Once all the pots are filled, the tagging process begins. Each pot receives a label indicating its tree ID, genotype, and corresponding experiment. The tagging process is critical as it helps differentiate each pot's journey and helps maintain organization in the greenhouse. Stay tuned for the next post on sowing!

#americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch #prepping #smallstemassay
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Join Lauren as she demonstrates the process of the Generational Passthrough experiment. It starts with the initial inoculation and placement of cryphonectria plugs into young seedlings. She then observes the cankers' development over a two-week period. Next, Lauren extracts the cryphonectria from these cankers, trims and sections the stem into agar for culture and subculture, repeating these steps across ten generations. Finally, she examines the initial and final cultures, where the genome sequence provides crucial insights into the changes of the cryphonectria. Lauren's analysis aims to detect any genotype alterations in the chestnut trees and observe potential evolution in the cryphonectria.

Come back and check out our next post on “Follow the Roots”!

#americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch #ConservationScience #dayinthelife
... See MoreSee Less

Join Lauren as she demonstrates the process of the Generational Passthrough experiment. It starts with the initial inoculation and placement of cryphonectria plugs into young seedlings. She then observes the cankers development over a two-week period. Next, Lauren extracts the cryphonectria from these cankers, trims and sections the stem into agar for culture and subculture, repeating these steps across ten generations. Finally, she examines the initial and final cultures, where the genome sequence provides crucial insights into the changes of the cryphonectria. Laurens analysis aims to detect any genotype alterations in the chestnut trees and observe potential evolution in the cryphonectria.Come back and check out our next post on “Follow the Roots”!#americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch #ConservationScience #dayinthelifeImage attachment

At Meadowview Research Farms the chestnut orchards go dormant in the winter, but any seedlings that haven't been planted are allowed to go dormant as well! Potted seedlings are "overwintered" to protect their roots from freezing, ensuring they survive to the next growing season. Trees in the field are insulated from the frigid temperatures by the thermal mass of the soil surrounding their roots, but seedlings do not have the same protection being in small pots. MRF places trees closely together inside of thick vinyl tents to protect potted seedling roots from the low temperatures outside and adds heaters for particularly cold weather. Seedlings for certain research projects also remain dormant indoors in garages that are kept at 40 degrees Fahrenheit throughout the winter. The temperatures have remained consistently low for the past few weeks, but the seedlings are happily waiting out the winter for the next growing season to arrive.

#americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch
... See MoreSee Less

At Meadowview Research Farms the chestnut orchards go dormant in the winter, but any seedlings that havent been planted are allowed to go dormant as well! Potted seedlings are overwintered to protect their roots from freezing, ensuring they survive to the next growing season. Trees in the field are insulated from the frigid temperatures by the thermal mass of the soil surrounding their roots, but seedlings do not have the same protection being in small pots. MRF places trees closely together inside of thick vinyl tents to protect potted seedling roots from the low temperatures outside and adds heaters for particularly cold weather. Seedlings for certain research projects also remain dormant indoors in garages that are kept at 40 degrees Fahrenheit throughout the winter. The temperatures have remained consistently low for the past few weeks, but the seedlings are happily waiting out the winter for the next growing season to arrive.  #americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch

3 CommentsComment on Facebook

Fascinating info!

I messaged the Carolinas chapters. The last activity was Dec 2023 though . I’d like to plant some chestnut trees around my property but can’t afford the 300 dollar fee/ donation. Could I just get a few ?

I like to say that they've gone to winter quarters.

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