The complete genome assembly of Nicotiana benthamiana reveals the genetic and epigenetic landscape of centromeres.
#Nicotiana #Centromeres #Transposons #TEs #Satellites #GenomeAssembly
Nicotiana benthamiana is a model organism widely adopted in plant biology. Its complete assembly remains unavailable despite several recent improvements. To further improve its usefulness, we generate and phase the complete 2.85 Gb genome assembly of allotetraploid N. benthamiana. We find that although Solanaceae centromeres are widely dominated by Ty3/Gypsy retrotransposons, satellite-based centromeres are surprisingly common in N. benthamiana, with 11 of 19 centromeres featured by megabase-scale satellite arrays. Interestingly, the satellite-enriched and satellite-free centromeres are extensively invaded by distinct Gypsy retrotransposons which CENH3 protein more preferentially occupies, suggestive of their crucial roles in centromere function. We demonstrate that ribosomal DNA is a major origin of centromeric satellites, and mitochondrial DNA could be employed as a core component of the centromere. Subgenome analysis indicates that the emergence of satellite arrays probably drives new centromere formation. Altogether, we propose that N. benthamiana centromeres evolved via neocentromere formation, satellite expansion, retrotransposon enrichment and mtDNA integration. This study generates and phases the complete genome assembly of a model plant Nicotiana benthamiana, revealing insights into the structure, epigenetic landscape and evolutionary dynamics of its centromeres following allotetraploidization.
Ruby Transformation with Agro Bacteria in Nicotiana benthamiana!🔥😮
Just look how fascinating it looks!💯🔥
#synbio2024 #syntheticbiology #biology #ruby #Nicotiana #transformation #tubraunschweig #braunschweig
🤔Have you ever wondered what VOC proteins do?
Guo et al. did. And what they discovered will improve our understanding of #plant-#virus interactions!
Learn more at https://doi.org/10.1111/jipb.13667
@wileyplantsci #PlantScience #VOCprotein #protein #Nicotiana #BNYVV #PlantPathology #botany
#Plant science research paves the way for deeper understanding of how the plant #immune_system functions.
#plasmodesmata #callose #Nicotiana
https://phys.org/news/2024-04-science-paves-deeper-immune-functions.html
Researchers in the laboratory of Tessa Burch-Smith, Ph.D. at the Danforth Plant Science Center and the University of Tennessee, Knoxville, are conducting pioneering work to discover how plants transmit information, important molecules, and viruses between cells.
Another one of the white-lined sphinx moth photos from August. I particularly like the symmetry of this one.
#entomology #moths #pollinators #sphinxmoth #gardeninsects #yxe #nicotiana
Wie eigentümlich #Messmerisierend strahlst du, #Nicotiana #tabacum?
Deine #Tropanalkaloide betören die #sinne
Aus der Familie der #Nachtschattengewächse, Wenn ich mich recht #entsinne.
Eine #Sinfonie gepaart mit einem #kaffee Entrückst du jeglichen #schmerz Ein #Portal tut sich auf zur #vergangenheit Ich finde mich wieder in einer längst vergangenen #zeit
In guter #gesellschaft wer
weiß...?
Samuel Nestor Meckoni
George 🍦🚲 🥾 ✌️🌎 🌌
Amelia Cervera 🧬
JIPB
SynBio24
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🪷 प्रियंका | Priyanka 🪷
Sisyphus with a Hat
🐦🔥nemo™🐦⬛ 🇺🇦🍉