For more on the subject:
Čertner, M., Rydlo, J., Dudáš, M., Hroudová, Z., 2022. A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus). doi.org/10.1016/j.pp...
Čertner, M., Rydlo, J., Dudáš, M., Hroudová, Z., 2022. A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus). doi.org/10.1016/j.pp...
Redirecting
doi.org
September 22, 2026 at 7:50 PM
For more on the subject:
Čertner, M., Rydlo, J., Dudáš, M., Hroudová, Z., 2022. A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus). doi.org/10.1016/j.pp...
Čertner, M., Rydlo, J., Dudáš, M., Hroudová, Z., 2022. A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus). doi.org/10.1016/j.pp...
Though I will not make it to #Botany2026, Doug Soltis and Jacob Landis will tag-team my talk on Monday at 2:15 pm in Population Genomics (San Ignacio)!
July 31, 2026 at 6:17 PM
Though I will not make it to #Botany2026, Doug Soltis and Jacob Landis will tag-team my talk on Monday at 2:15 pm in Population Genomics (San Ignacio)!
📢 Viewpoint in New Phyt. on polyploid establishment!
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
February 11, 2025 at 5:08 PM
📢 Viewpoint in New Phyt. on polyploid establishment!
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
It seems we are overcoming the minority cytotype disadvantage and successfully establishing in a new habitat. 🌱
Something is happening. Right now, we get more reposting and liking of the same posts on BlueSky than on Twitter.
November 15, 2024 at 5:06 PM
It seems we are overcoming the minority cytotype disadvantage and successfully establishing in a new habitat. 🌱
It seems we are overcoming the minority cytotype disadvantage and successfully establishing in a new habitat. 🌱
November 15, 2024 at 5:05 PM
It seems we are overcoming the minority cytotype disadvantage and successfully establishing in a new habitat. 🌱
I feel like cytotype has a bunch of other connotations creating baggage. Like individuals with the same ploidy share a cytotype. I just take my glasses off and then with and without the dash look the same.
May 6, 2026 at 11:38 PM
I feel like cytotype has a bunch of other connotations creating baggage. Like individuals with the same ploidy share a cytotype. I just take my glasses off and then with and without the dash look the same.
🌱 From the upcoming #AJB #Polyploidy special issue 🌱
Friends without benefits: Extensive cytotype sympatry & #polyploid persistence in an African #geophyte
By Damian Vaz de Sousa, Michelle Greve & Kenneth Oberlander
doi.org/10.1002/ajb2... #botany
Friends without benefits: Extensive cytotype sympatry & #polyploid persistence in an African #geophyte
By Damian Vaz de Sousa, Michelle Greve & Kenneth Oberlander
doi.org/10.1002/ajb2... #botany
March 6, 2024 at 6:27 PM
🌱 From the upcoming #AJB #Polyploidy special issue 🌱
Friends without benefits: Extensive cytotype sympatry & #polyploid persistence in an African #geophyte
By Damian Vaz de Sousa, Michelle Greve & Kenneth Oberlander
doi.org/10.1002/ajb2... #botany
Friends without benefits: Extensive cytotype sympatry & #polyploid persistence in an African #geophyte
By Damian Vaz de Sousa, Michelle Greve & Kenneth Oberlander
doi.org/10.1002/ajb2... #botany
The second Ph.D. chapter thesis of Diane Douet is now published in @journal-evo.bsky.social. Diane studied the impact of self-fertilization and pollen limitation on autopolyploid establishment under gametophytic self-incompatibility.
Congratulations Diane!
academic.oup.com/evolut/advan...
Congratulations Diane!
academic.oup.com/evolut/advan...
Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation
Abstract. Polyploidy is widespread in plants, yet the establishment of neo-polyploids is limited by minority cytotype exclusion (MCE). As polyploidy has be
academic.oup.com
June 10, 2026 at 8:10 AM
The second Ph.D. chapter thesis of Diane Douet is now published in @journal-evo.bsky.social. Diane studied the impact of self-fertilization and pollen limitation on autopolyploid establishment under gametophytic self-incompatibility.
Congratulations Diane!
academic.oup.com/evolut/advan...
Congratulations Diane!
academic.oup.com/evolut/advan...
Found everything from one giant monstrous petal to ten, except for nine. It’s common to find the occasional four or sixer all over the place, but this is…odd.
The Louisiana ones are an unusual cytotype, but that’s very old and sparse data no one was followed up on (yet).
Forgot to post this one!
The Louisiana ones are an unusual cytotype, but that’s very old and sparse data no one was followed up on (yet).
Forgot to post this one!
March 9, 2026 at 8:35 PM
Found everything from one giant monstrous petal to ten, except for nine. It’s common to find the occasional four or sixer all over the place, but this is…odd.
The Louisiana ones are an unusual cytotype, but that’s very old and sparse data no one was followed up on (yet).
Forgot to post this one!
The Louisiana ones are an unusual cytotype, but that’s very old and sparse data no one was followed up on (yet).
Forgot to post this one!
🌱 From the upcoming #AJB #Polyploidy special issue 🌱
Plant–soil microbe feedbacks depend on distance & ploidy in a mixed cytotype population of #creosote bush
By Benjamin Gerstner, Robert Laport, Jennifer Rudgers & Kenneth Whitney
doi.org/10.1002/ajb2... #botany
Plant–soil microbe feedbacks depend on distance & ploidy in a mixed cytotype population of #creosote bush
By Benjamin Gerstner, Robert Laport, Jennifer Rudgers & Kenneth Whitney
doi.org/10.1002/ajb2... #botany
March 4, 2024 at 5:40 PM
🌱 From the upcoming #AJB #Polyploidy special issue 🌱
Plant–soil microbe feedbacks depend on distance & ploidy in a mixed cytotype population of #creosote bush
By Benjamin Gerstner, Robert Laport, Jennifer Rudgers & Kenneth Whitney
doi.org/10.1002/ajb2... #botany
Plant–soil microbe feedbacks depend on distance & ploidy in a mixed cytotype population of #creosote bush
By Benjamin Gerstner, Robert Laport, Jennifer Rudgers & Kenneth Whitney
doi.org/10.1002/ajb2... #botany
Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation
doi.org/10.1101/2025...
doi.org/10.1101/2025...
Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation
Polyploidy is widespread in plants, yet the establishment of neo-polyploids is limited by minority cytotype exclusion (MCE). As polyploidy has been associated with higher selfing rates in empirical st...
doi.org
November 1, 2025 at 7:34 AM
Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation
doi.org/10.1101/2025...
doi.org/10.1101/2025...
I would love to find out the cytotype of R. tripartitus when it turns up in newly dug pond in a new county.
Or find out how related they are to other populations.
Or find out how related they are to other populations.
October 5, 2025 at 8:18 PM
I would love to find out the cytotype of R. tripartitus when it turns up in newly dug pond in a new county.
Or find out how related they are to other populations.
Or find out how related they are to other populations.
Thus, Piwi silences the P-element through the rapid turnover of nascent transcripts prior to their splicing. Without the TEsup-exosome axis, P-cytotype flies show severe gonadal atrophy and are completely sterile.
December 22, 2025 at 6:14 PM
Thus, Piwi silences the P-element through the rapid turnover of nascent transcripts prior to their splicing. Without the TEsup-exosome axis, P-cytotype flies show severe gonadal atrophy and are completely sterile.
The second Ph.D. chapter of Diane's thesis is out as a preprint. She studied the joint evolution of autopolyploidy and self-fertilization under a gametophytic self-incompatibility context.
Feel free to comment, and congratulations, Diane!
www.biorxiv.org/content/10.1...
Feel free to comment, and congratulations, Diane!
www.biorxiv.org/content/10.1...
Autopolyploid establishment under gametophytic self-incompatibility: the impact of self-fertilization and pollen limitation
Polyploidy is widespread in plants, yet the establishment of neo-polyploids is limited by minority cytotype exclusion (MCE). As polyploidy has been associated with higher selfing rates in empirical st...
www.biorxiv.org
October 31, 2025 at 8:17 AM
The second Ph.D. chapter of Diane's thesis is out as a preprint. She studied the joint evolution of autopolyploidy and self-fertilization under a gametophytic self-incompatibility context.
Feel free to comment, and congratulations, Diane!
www.biorxiv.org/content/10.1...
Feel free to comment, and congratulations, Diane!
www.biorxiv.org/content/10.1...
To find out more about nQuack, check out our 2024 publication here: doi.org/10.1002/aps3...
Now, we are about 8904 samples into our next model - Stay-tune for jacked duck.
Now, we are about 8904 samples into our next model - Stay-tune for jacked duck.
nQuack: An R package for predicting ploidal level from sequence data using site‐based heterozygosity
Premise
Traditional methods of ploidal-level estimation are tedious; using DNA sequence data for cytotype estimation is an ideal alternative. Multiple statistical approaches to leverage sequence dat.....
doi.org
October 14, 2025 at 1:36 AM
To find out more about nQuack, check out our 2024 publication here: doi.org/10.1002/aps3...
Now, we are about 8904 samples into our next model - Stay-tune for jacked duck.
Now, we are about 8904 samples into our next model - Stay-tune for jacked duck.
Join us on Wednesday, October 2, at 11AM PDT for the first #PolyploidyWebinar of the season! @shellygaynor.bsky.social and @pairoflogs.bsky.social will lead us off! The zoom link will be emailed out before the talks - sign up here if you have not signed up before! forms.gle/Bp3VUGeP9nAc...
September 11, 2024 at 11:25 PM
Join us on Wednesday, October 2, at 11AM PDT for the first #PolyploidyWebinar of the season! @shellygaynor.bsky.social and @pairoflogs.bsky.social will lead us off! The zoom link will be emailed out before the talks - sign up here if you have not signed up before! forms.gle/Bp3VUGeP9nAc...
Am I the only person fed up of:
Cell-type
Vs
Cell type
Especially when:
Cell-type-specific
Cell type-specific
In this era of single cell sequencing & cell type specific effects, I feel we need a single word to describe cell-type. Maybe:
Cytotype?
Thoughts? And how do we make it catch on
Cell-type
Vs
Cell type
Especially when:
Cell-type-specific
Cell type-specific
In this era of single cell sequencing & cell type specific effects, I feel we need a single word to describe cell-type. Maybe:
Cytotype?
Thoughts? And how do we make it catch on
May 6, 2026 at 10:46 PM
Am I the only person fed up of:
Cell-type
Vs
Cell type
Especially when:
Cell-type-specific
Cell type-specific
In this era of single cell sequencing & cell type specific effects, I feel we need a single word to describe cell-type. Maybe:
Cytotype?
Thoughts? And how do we make it catch on
Cell-type
Vs
Cell type
Especially when:
Cell-type-specific
Cell type-specific
In this era of single cell sequencing & cell type specific effects, I feel we need a single word to describe cell-type. Maybe:
Cytotype?
Thoughts? And how do we make it catch on
With C. pratensis it is probably inconsequential but for something like Parnassia palustris which has one cytotype far more threatened than the other having separate names and assessments etc would be good
August 26, 2026 at 11:10 AM
With C. pratensis it is probably inconsequential but for something like Parnassia palustris which has one cytotype far more threatened than the other having separate names and assessments etc would be good
Parasite communities and prevalence were similar in sexual diploid and asexual polyploid Lumbriculus variegatus but prevalence tracked local cytotype frequencies, revealing both positive and negative frequency-dependent parasitism:
doi.org/10.1093/jeb/...
Tardent et al.
doi.org/10.1093/jeb/...
Tardent et al.
Positive and negative frequency-dependent parasitism in naturally co-occurring diploid sexual and polyploid asexual Lumbriculus variegatus
Abstract. Polyploidization is an important evolutionary force. It drives sympatric speciation through reproductive isolation of different cytotypes, and of
doi.org
May 26, 2025 at 11:11 AM
Parasite communities and prevalence were similar in sexual diploid and asexual polyploid Lumbriculus variegatus but prevalence tracked local cytotype frequencies, revealing both positive and negative frequency-dependent parasitism:
doi.org/10.1093/jeb/...
Tardent et al.
doi.org/10.1093/jeb/...
Tardent et al.
Neat!
Set my lower limit to four because I don't have tons of pubs yet! Used a text extractor to generate alt-text.
Set my lower limit to four because I don't have tons of pubs yet! Used a text extractor to generate alt-text.
September 23, 2023 at 12:39 AM
Neat!
Set my lower limit to four because I don't have tons of pubs yet! Used a text extractor to generate alt-text.
Set my lower limit to four because I don't have tons of pubs yet! Used a text extractor to generate alt-text.
First time running flow cytometry in about seven years, and my resampled single-cytotype populations have remained the same. Comforting to know grad school Brittany wasn't terrible at this. :D
(This was taken while I was still dialing things in this morning, hence the random gates of nothing).
(This was taken while I was still dialing things in this morning, hence the random gates of nothing).
August 13, 2024 at 11:34 PM
First time running flow cytometry in about seven years, and my resampled single-cytotype populations have remained the same. Comforting to know grad school Brittany wasn't terrible at this. :D
(This was taken while I was still dialing things in this morning, hence the random gates of nothing).
(This was taken while I was still dialing things in this morning, hence the random gates of nothing).
Polyploidy was often thought to be an evolutionary dead-end. At the population level, neopolyploids are subject to minority cytotype exclusion, which poses severe reproductive challenges to nascent polyploids.
May 8, 2026 at 2:52 PM
Polyploidy was often thought to be an evolutionary dead-end. At the population level, neopolyploids are subject to minority cytotype exclusion, which poses severe reproductive challenges to nascent polyploids.
Polyploidization or whole genome duplication is a major driver in plant speciation. It creates instant barriers to gene flow, especially between individuals of different ploidy levels. (2/6)
June 25, 2024 at 12:02 PM
Polyploidization or whole genome duplication is a major driver in plant speciation. It creates instant barriers to gene flow, especially between individuals of different ploidy levels. (2/6)
The only site in the Pyrenees where this orchid occurred was a few hundred meters from where I conducted my population cytogenetic studies in 2x-4x Plantago media, as part of my PhD thesis. Minority Cytotype Exclusion and Repoductive Character Displacement as predicted.
May 25, 2025 at 4:14 PM
The only site in the Pyrenees where this orchid occurred was a few hundred meters from where I conducted my population cytogenetic studies in 2x-4x Plantago media, as part of my PhD thesis. Minority Cytotype Exclusion and Repoductive Character Displacement as predicted.
#Cytotype #FunctionalTraits #Genotype #IntraSpecificVariation #LeafEconomicsSpectrum #Polyploidy #PopulusTremuloides #QuakingAspen
September 25, 2025 at 5:06 PM