Comparative genomics of nitrogen acquisition and assimilation gene-family copy-number architecture across chlorophytes.

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Article in World journal of microbiology & biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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1 author.

Prabhaharan RenganathanDepartment of Bioecology and Biological Education, M. Akmullah Bashkir State Pedagogical University, Ufa, 450000, Russia. prabhaharan06@gmail.com.ORCID http://orcid.org/0000-0002-2975-4688

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitrogen acquisition and assimilation determine nitrogen availability for algal growth and metabolism; however, their gene-family organization across chlorophytes remains poorly resolved. We examined 10 gene families (NiR, NR, NRT, AMT, GS, GOGAT, GDH, ASN, CPS-L, and CPS-S) in 30 chlorophyte genome assemblies using family-specific sequence-based curation. The assemblies represented 26 biological species after taxonomic standardization and pseudoreplication control. One representative assembly per species defined the primary dataset (D1; n = 26), with BUSCO C ≥ 80% (D2; n = 22) and C ≥ 90% (D3; n = 18) subsets used for genome-completeness sensitivity analyses. A BUSCO-based species phylogeny was used to visualize copy-number patterns relative to relationships among sampled taxa. AMT and NRT showed the broadest copy-number distributions, whereas NiR and the CPS subunits were predominantly single-copy. After normalization for the unequal number of families in each module, nitrogen acquisition had a higher copy-number per family than intracellular assimilation in D1 (Wilcoxon W = 8, p = 4.93 × 10

Indexed as

ChlorophytaGenomicsMultigene FamilyNitrogenGene DosageGenome, PlantPhylogenyNitrogenChlorophytesComparative genomicsGene-family copy-number variationNitrogen acquisitionNitrogen assimilationPhylogenomics

Identifiers

PMID42821022

DOI10.3390/ijms222313036

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