Table · dataset · 2026
Various brown algae genomes (in the context of PKN and specific fertilization in brown algae)
Listed in Edmond
Fertilization, the union of male and female gametes, is central to sexual reproduction, yet how gametes recognize compatible partners and enforce species specificity remains poorly understood.
Description
Here, we identify PKN - a previously uncharacterized transmembrane protein expressed exclusively in female gametes of brown algae that is essential for fertilization. Loss of PKN blocks fertilization without affecting earlier mating steps, such as gamete attraction, revealing it as a key mediator of male-female recognition.
This protein contains extracellular beta-propeller and mucin-like domains, both of which are rapidly evolving and contains multiple predicted glycosylation sites, consistent with a role in species-specific interactions. Remarkably, this protein enforces reproductive isolation within the genus Scytosiphon, preventing interspecific fertilization. These findings reveal a p previously unrecognized molecular mechanism underlying sex- and species-specific fertilization and highlight the evolutionary conservation of sugar-protein-mediated recognition in eukaryotic reproduction.
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Please see the file "genome_and_annotation_description.xlsx" for a detailed file description. ## Files content ## Assembly;number_of_contigs;genome_size_[bp];number_of_transcripts Ascophyllum_nodosum.scaffolds.fa;15906;1252680174;113652 Chordaria_linearis.scaffolds.fa;217;214613037;27121 Choristocarpus_tenellus_KU-1152.scaffolds.fa;27308;163990365;34185 Desmarestia_dudresnayi.scaffolds.fa;69625;426469906;65703 Desmarestia_herbacea.scaffolds.fa;2591;484640653;45371 Dictyota_dichotoma.scaffolds.fa;6019;851153257;52894 Discosporangium_mesarthrocarpum_MT17-79.scaffolds.fa;21382;155943624;36086 Ectocarpus_crouaniorum_Ec862m.scaffolds.fa;275;218468182;24655 Ectocarpus_fasciculatus_Ec846f.scaffolds.fa;35116;165859709;27581 Ectocarpus_siliculosus_Ec864m.scaffolds.fa;1633;200168972;21785 Ectocarpus_sp.7_Ec32.scaffolds.fa;30;196804589;20651 Fucus_serratus.scaffolds.fa;8866;1234397982;100386 Hapterophycus_canaliculatus.scaffolds.fa;53970;169544581;39981 Myriotrichia_clavaeformis_Myt_cla04.scaffolds.fa;12245;140693113;24153 Phaeothamnion_wetherbeei.scaffolds.fa;42337;78705526;26911 Porterinema-fluviatile.fa;110;167191340;17991 Saccharina_japonica.scaffolds.fa;405;516349703;18696 Saccorhiza_polyschides_SpolBR94m.scaffolds.fa;77262;516942808;47390 Sargassum_fusiforme.scaffolds.fa;1576;438130216;82201 Sargassum_thunbergii.scaffolds.fa;2347;376248926;71104 Schizocladia_ischiensis_KU-0333.scaffolds.fa;130;194512753;21436 Scytosiphon_lomentaria_Kn2f.scaffolds.fa;4127;169065734;17108 Scytosiphon_promiscuus_Mr5f.scaffolds.fa;2933;168564100;18787 Scytosiphon_promiscuus_Ot16m.scaffolds.fa;392;193299099;21366 Scytosiphon_shibazakiorum_Os10m.scaffolds.fa;4334;168731439;16753 Sphacelaria_rigidula.scaffolds.fa;27212;244231899;27904 Tribonema_minus.scaffolds.fa;557;158345074;18290 Undaria_pinnatifida.scaffolds.fa;33;634545109;37571
Links
Where it is published
- Dataverse dataset page edmond.mpg.de/dataset.xhtml?persistentId=doi%3A10.17617%2F3.KSPLGM ↗
landing page · from edmond mpdl mpg de
- DOI doi.org/10.17617/3.ksplgm ↗
DOI / persistent id · from edmond mpdl mpg de
Catalogue records · 1
- Dataverse API edmond.mpg.de/api/datasets/:persistentId/?persistentId=doi%3A10.17617%2F3.KS… ↗
metadata API · from edmond mpdl mpg de
Topics
- From keywords
- Astronomy & Astrophysics · Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Humanities · Life Sciences · Life Sciences · Materials Science · Medicine & Health · Ocean & Atmospheric Science · Physics · Social Science
- Inferred from text
- Plant biology 73%
Provenance · 2 source records, 23 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Edmond | doi:10.17617/3.KSPLGM | 13 d ago | JSON v1 |
| Edmond | doi:10.17617/3.KSPLGM | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3108 | enrichment · edmond mpdl mpg de | taxonomy-embedding@1.0.0 | title+keywords+description (73%) |
| concepts[field].dataverse_subject:biology | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | /subjects |
| concepts[field].dataverse_subject:biology | source · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:astronomy | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:chemistry | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:computer-science-ai | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:earth-environmental | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:economics-finance | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:engineering | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:humanities | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:life-sciences | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:life-sciences | mapping · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:materials-science | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:medicine-health | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:ocean-atmospheric | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:physics | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| concepts[field].local:field:social-science | mapping · edmond mpg de | connector:edmond_mpg_de@1.0.0 | /subjects |
| created_date | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | |
| description | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | /description |
| publication_date | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | |
| title | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | /name |
| updated_date | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 | |
| version_label | source · edmond mpdl mpg de | connector:edmond_mpdl_mpg_de@1.0.0 |