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Sahr Mian

As seen in: New Phytologist, BioRxiv
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Articles

Gene turnover and contingency facilitated the repeated evolution of C4 photosynthesis in grasses

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By Lara Pereira, Ahmed S. Alenazi, Sahr Mian, Ilia J. Leitch
| BioRxiv
Abstract In grasses, almost all species belong to two evenly sized clades (BOP and PACMAD), yet the >20 independent origins of C4 photosynthesis in this family only occur in the PACMAD lineage. Here, we identify potential genetic precursors for C4 photosynthesis that were present at the base of the PACMAD clade, representing the last common ancestor of all C4 grasses.
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Bigger genomes provide environment‐dependent growth benefits in grasses

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By Kimberley Simpson, Kew Richmond, Sahr Mian, Elisabeth J. Forrestel
| New Phytologist
Introduction Genome-related costs to plant growth are widely reported to scale with genome size (GS; Knight et al., 2005; Simonin & Roddy, 2018). Data suggest that species with larger genomes have slower cell cycle rates (Bennett, 1972; Šímová & Herben, 2012), and higher nitrogen (N) and phosphorus (P) demands (Kang et al., 2015; Anneberg & Segraves, 2023).
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