NDLI: Analysis of an improved Cyanophora paradoxa genome assembly

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Analysis of an improved Cyanophora paradoxa genome assembly

Content Provider	Semantic Scholar
Author	Price, Dana C. Goodenough, Ursula W. Roth, Robyn Lee, Jae-Hyeok Kariyawasam, Thamali Mutwil, Marek Ferrari, Camilla Facchinelli, Fabio Ball, Steven G. Cenci, U. Chan, Cheong Xin Wagner, Nicole E. Yoon, Hwan Su Weber, Andreas P. M. Bhattacharya, Debashish
Copyright Year	2019
Abstract	Glaucophyta are members of the Archaeplastida, the founding group of photosynthetic eukaryotes that also includes red algae (Rhodophyta), green algae, and plants (Viridiplantae). Here we present a high-quality assembly, built using long-read sequences, of the ca. 100 Mb nuclear genome of the model glaucophyte Cyanophora paradoxa. We also conducted a quick-freeze deep-etch electron microscopy (QFDEEM) analysis of C. paradoxa cells to investigate glaucophyte morphology in comparison to other organisms. Using the genome data, we generated a resolved 115-taxon eukaryotic tree of life that includes a well-supported, monophyletic Archaeplastida. Analysis of muroplast peptidoglycan (PG) ultrastructure using QFDEEM shows that PG is most dense at the cleavage-furrow. Analysis of the chlamydial contribution to glaucophytes and other Archaeplastida shows that these foreign sequences likely played a key role in anaerobic glycolysis in primordial algae to alleviate ATP starvation under night-time hypoxia. The robust genome assembly of C. paradoxa significantly advances knowledge about this model species and provides a reference for exploring the panoply of traits associated with the anciently diverged glaucophyte lineage.
Starting Page	287
Ending Page	299
Page Count	13
File Format	PDF HTM / HTML
DOI	10.1093/dnares/dsz009
PubMed reference number	31098614
Journal	Medline
Volume Number	26
Alternate Webpage(s)	https://digitalcommons.wustl.edu/cgi/viewcontent.cgi?article=9135&context=open_access_pubs
Alternate Webpage(s)	https://doi.org/10.1093/dnares%2Fdsz009
Journal	DNA research : an international journal for rapid publication of reports on genes and genomes
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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