Peter Schafran
@peterwschafran.com
Reposted by Peter Schafran
📢 New publication 'Evolutionary history of sex and accessory chromosomes in #hornworts' by John Bowman and Jonathan Levins in @newphyt.bsky.social 🧪
doi.org/10.1111/nph....
doi.org/10.1111/nph....
Evolutionary history of sex and accessory chromosomes in hornworts
Click on the article title to read more.
doi.org
August 3, 2025 at 9:56 PM
📢 New publication 'Evolutionary history of sex and accessory chromosomes in #hornworts' by John Bowman and Jonathan Levins in @newphyt.bsky.social 🧪
doi.org/10.1111/nph....
doi.org/10.1111/nph....
Reposted by Peter Schafran
It’s hard to believe our summer undergraduate researchers are wrapping up in just a few weeks! This summer of science has flown by. Catch up on their adventures in the lab, out in the field, around Ithaca, and beyond!
July 25, 2025 at 3:13 PM
It’s hard to believe our summer undergraduate researchers are wrapping up in just a few weeks! This summer of science has flown by. Catch up on their adventures in the lab, out in the field, around Ithaca, and beyond!
Reposted by Peter Schafran
A little belated but I've started a faculty position at Ecology, Evolution and Marine Biology department at @ucsantabarbara.bsky.social. I'm absolutely stoked! I'll be recruiting at all levels and will be at #Botany2025
Reach out!
www.martinezgomezlab.com
Reach out!
www.martinezgomezlab.com
Martinez-Gomez Lab
Plant Evo-Devo
www.martinezgomezlab.com
July 25, 2025 at 8:09 PM
A little belated but I've started a faculty position at Ecology, Evolution and Marine Biology department at @ucsantabarbara.bsky.social. I'm absolutely stoked! I'll be recruiting at all levels and will be at #Botany2025
Reach out!
www.martinezgomezlab.com
Reach out!
www.martinezgomezlab.com
This seems to work really well! Improved a draft genome with N50=0.5 Mb (flye 2.9.4/hifiasm-0.19.8), increased to N50=5 Mb (11 Mb after removing all the repetitive element contigs)
Preprint on hifiasm Nanopore-only assembly. Led by Haoyu Cheng: www.biorxiv.org/content/10.1...
Efficient near telomere-to-telomere assembly of Nanopore Simplex reads
Telomere-to-telomere (T2T) assembly is the ultimate goal for de novo genome assembly. Existing algorithms capable of near T2T assembly all require Oxford Nanopore Technologies (ONT) ultra-long reads w...
www.biorxiv.org
April 25, 2025 at 2:35 PM
This seems to work really well! Improved a draft genome with N50=0.5 Mb (flye 2.9.4/hifiasm-0.19.8), increased to N50=5 Mb (11 Mb after removing all the repetitive element contigs)
Reposted by Peter Schafran
#Phylogenetics & population structure of the western North American endemic Pacific Laurasian clade of #Isoëtes
New #AJB research by Forrest Freund, Daniel Gates, Matthew Johnson & @crothfels.bsky.social
doi.org/10.1002/ajb2... #botany #plantscience #genetics #biogeography #evolution
New #AJB research by Forrest Freund, Daniel Gates, Matthew Johnson & @crothfels.bsky.social
doi.org/10.1002/ajb2... #botany #plantscience #genetics #biogeography #evolution
April 16, 2025 at 2:43 PM
#Phylogenetics & population structure of the western North American endemic Pacific Laurasian clade of #Isoëtes
New #AJB research by Forrest Freund, Daniel Gates, Matthew Johnson & @crothfels.bsky.social
doi.org/10.1002/ajb2... #botany #plantscience #genetics #biogeography #evolution
New #AJB research by Forrest Freund, Daniel Gates, Matthew Johnson & @crothfels.bsky.social
doi.org/10.1002/ajb2... #botany #plantscience #genetics #biogeography #evolution
Reposted by Peter Schafran
Preprint on hifiasm Nanopore-only assembly. Led by Haoyu Cheng: www.biorxiv.org/content/10.1...
Efficient near telomere-to-telomere assembly of Nanopore Simplex reads
Telomere-to-telomere (T2T) assembly is the ultimate goal for de novo genome assembly. Existing algorithms capable of near T2T assembly all require Oxford Nanopore Technologies (ONT) ultra-long reads w...
www.biorxiv.org
April 18, 2025 at 9:54 PM
Preprint on hifiasm Nanopore-only assembly. Led by Haoyu Cheng: www.biorxiv.org/content/10.1...
Reposted by Peter Schafran
🎉 Great news! The paper ‘Distinct patterns of genome size evolution in each bryophyte lineage are not correlated with whole genome duplication’ in @annbot.bsky.social by Nikisha Patel and co-authors is now #free for a limited time 🧵(1/8)
👉 doi.org/pcjr
@mossplants.bsky.social
#AoBpapers
👉 doi.org/pcjr
@mossplants.bsky.social
#AoBpapers
March 21, 2025 at 10:11 AM
🎉 Great news! The paper ‘Distinct patterns of genome size evolution in each bryophyte lineage are not correlated with whole genome duplication’ in @annbot.bsky.social by Nikisha Patel and co-authors is now #free for a limited time 🧵(1/8)
👉 doi.org/pcjr
@mossplants.bsky.social
#AoBpapers
👉 doi.org/pcjr
@mossplants.bsky.social
#AoBpapers
The reviews are in, this was the best Quillwort Conference ever! Thanks so much to our speakers:
Gemma Milly
Lisa George
David Wickell @wickellomics.bsky.social
Megan Nibbelink @megantheebotanist.bsky.social
Jacob Suissa
John Evans
Gemma Milly
Lisa George
David Wickell @wickellomics.bsky.social
Megan Nibbelink @megantheebotanist.bsky.social
Jacob Suissa
John Evans
March 20, 2025 at 3:51 PM
The reviews are in, this was the best Quillwort Conference ever! Thanks so much to our speakers:
Gemma Milly
Lisa George
David Wickell @wickellomics.bsky.social
Megan Nibbelink @megantheebotanist.bsky.social
Jacob Suissa
John Evans
Gemma Milly
Lisa George
David Wickell @wickellomics.bsky.social
Megan Nibbelink @megantheebotanist.bsky.social
Jacob Suissa
John Evans
Reposted by Peter Schafran
(2/2) Giant sex chromosomes were discovered in Silene latifolia more than 100 years ago. Two papers back to back now show the sequence of the 550 Mbp Silene Y chromosome helping to understand sex determination
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
#plantscience
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
#plantscience
Rapid and dynamic evolution of a giant Y chromosome in Silene latifolia
Some plants have massive sex-linked regions. To test hypotheses about their evolution, we sequenced the genome of Silene latifolia, in which giant heteromorphic sex chromosomes were first discovered i...
www.science.org
February 7, 2025 at 12:24 PM
(2/2) Giant sex chromosomes were discovered in Silene latifolia more than 100 years ago. Two papers back to back now show the sequence of the 550 Mbp Silene Y chromosome helping to understand sex determination
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
#plantscience
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
#plantscience
Reposted by Peter Schafran
I am very proud of UMN Duluth undergrad Isabel Smalley, whose summer REU project led to co-authorship on her first paper, now out in Nature Plants! 🎉
Paper #2 - we generated 10 new chr-level genomes for hornworts covering all families and most genera. Also the first look into their U/V sex chromosomes! 3/4 www.nature.com/articles/s41...
Pan-phylum genomes of hornworts reveal conserved autosomes but dynamic accessory and sex chromosomes - Nature Plants
This study presents 11 new hornwort (Anthocerotophyta) genomes that clarify the structure and evolution of sex and accessory chromosomes in bryophytes and shed new light on the early evolution of land...
www.nature.com
January 3, 2025 at 1:53 PM
I am very proud of UMN Duluth undergrad Isabel Smalley, whose summer REU project led to co-authorship on her first paper, now out in Nature Plants! 🎉
Reposted by Peter Schafran
Second paper of the year led by Peter Schafran from @fernway.bsky.social lab (Cornell University). Again hornworts rock !! www.nature.com/articles/s41...
Pan-phylum genomes of hornworts reveal conserved autosomes but dynamic accessory and sex chromosomes - Nature Plants
This study presents 11 new hornwort (Anthocerotophyta) genomes that clarify the structure and evolution of sex and accessory chromosomes in bryophytes and shed new light on the early evolution of land...
www.nature.com
January 3, 2025 at 11:15 AM
Second paper of the year led by Peter Schafran from @fernway.bsky.social lab (Cornell University). Again hornworts rock !! www.nature.com/articles/s41...
Reposted by Peter Schafran
First paper of the year, led by Tanner Robison from @fernway.bsky.social lab (Cornell University!). Hornworts rock!!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Hornworts reveal a spatial model for pyrenoid-based CO2-concentrating mechanisms in land plants - Nature Plants
Hornworts are the only land plants with a pyrenoid-based CO2-concentrating mechanism. This study presents evidence that some of the key components in algal pyrenoid-based CO2-concentrating mechanisms ...
www.nature.com
January 3, 2025 at 11:11 AM
First paper of the year, led by Tanner Robison from @fernway.bsky.social lab (Cornell University!). Hornworts rock!!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Peter Schafran
Paper #2 - we generated 10 new chr-level genomes for hornworts covering all families and most genera. Also the first look into their U/V sex chromosomes! 3/4 www.nature.com/articles/s41...
Pan-phylum genomes of hornworts reveal conserved autosomes but dynamic accessory and sex chromosomes - Nature Plants
This study presents 11 new hornwort (Anthocerotophyta) genomes that clarify the structure and evolution of sex and accessory chromosomes in bryophytes and shed new light on the early evolution of land...
www.nature.com
January 3, 2025 at 11:11 AM
Paper #2 - we generated 10 new chr-level genomes for hornworts covering all families and most genera. Also the first look into their U/V sex chromosomes! 3/4 www.nature.com/articles/s41...
Reposted by Peter Schafran
Two new #hornwort papers from our group out in Nature Plants @natureplants.bsky.social today - a great way to celebrate the new year! 1/4
January 3, 2025 at 11:11 AM
Two new #hornwort papers from our group out in Nature Plants @natureplants.bsky.social today - a great way to celebrate the new year! 1/4
Reposted by Peter Schafran
One thing yinz should all know is whenever you write a title of the form <Catchy Phrase> [colon] <Description Of What The Paper is About> I reserve the right to decide whether or not the phrase following the colon is interesting or informative enough to be worth the aesthetic cost to my bibliography
December 19, 2024 at 11:20 AM
One thing yinz should all know is whenever you write a title of the form <Catchy Phrase> [colon] <Description Of What The Paper is About> I reserve the right to decide whether or not the phrase following the colon is interesting or informative enough to be worth the aesthetic cost to my bibliography
Reposted by Peter Schafran
#Viewpoint: A #stomate by any other name? The open question of hornwort gametophytic pores, their homology, and implications for the #evolution of stomates
James Paul Fortin and William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
James Paul Fortin and William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
December 11, 2024 at 3:37 PM
#Viewpoint: A #stomate by any other name? The open question of hornwort gametophytic pores, their homology, and implications for the #evolution of stomates
James Paul Fortin and William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
James Paul Fortin and William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
Reposted by Peter Schafran
Assembling the picture of stomatal #evolution
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by James W. Clark on this article by James Paul Fortin & William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/full/10....
#LatestIssue
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by James W. Clark on this article by James Paul Fortin & William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/full/10....
#LatestIssue
December 11, 2024 at 3:37 PM
Assembling the picture of stomatal #evolution
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by James W. Clark on this article by James Paul Fortin & William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/full/10....
#LatestIssue
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
👆 A #Commentary by James W. Clark on this article by James Paul Fortin & William E. Friedman
👇
📖 nph.onlinelibrary.wiley.com/doi/full/10....
#LatestIssue
Reposted by Peter Schafran
On the cover: Fluorescent paradermal confocal microscope section of three hornwort gametophytic pores (HGPs) in Phaeoceros carolinianus. Image courtesy of Faye M. Rosin and William E. Friedman.
📖 See Friedman & Fortin nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
📖 See Friedman & Fortin nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
December 11, 2024 at 3:37 PM
On the cover: Fluorescent paradermal confocal microscope section of three hornwort gametophytic pores (HGPs) in Phaeoceros carolinianus. Image courtesy of Faye M. Rosin and William E. Friedman.
📖 See Friedman & Fortin nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue
📖 See Friedman & Fortin nph.onlinelibrary.wiley.com/doi/10.1111/...
#LatestIssue