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AI-summarized plant biology research papers from bioRxiv

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Multipartite coevolution shapes plant apoplastic immunity against rice blast fungus

Authors: Takeda, T., Shimizu, M., Kodan, A., Utsushi, H., Kanzaki, E., Natsume, S., Imai, T., Oikawa, K., Abe, A., Terauchi, R.

Date: 2025-07-06 · Version: 1
DOI: 10.1101/2025.07.03.663104

Category: Plant Biology

Model Organism: Multi-species

AI Summary

The study demonstrates that a beta‑1,3‑glucan‑binding protein from the rice blast fungus Magnaporthe oryzae interacts with the rice thaumatin‑like protein OsPR5, which sequesters the fungal protein to trigger immunity, while the fungus secretes thaumatin‑binding proteins to counteract this defense. Additionally, a rice cell‑surface receptor kinase containing a thaumatin domain has evolved to detect the fungal GBP, highlighting a complex coevolutionary arms race in the rice apoplast.

beta‑1,3‑glucan‑binding protein Magnaporthe oryzae Oryza sativa thaumatin‑like proteins co‑evolutionary immunity

Exploring phenotypic and genetic variation in Lactuca with GWAS in L. sativa and L. serriola

Authors: Mehrem, S. L., Van den Ackerveken, G., Snoek, B. L.

Date: 2025-07-01 · Version: 1
DOI: 10.1101/2025.06.27.661939

Category: Plant Biology

Model Organism: Multi-species

AI Summary

The study generated a phenotypic dataset for 550 Lactuca accessions, including 20 wild relatives, and applied an iterative two‑step GWAS using a jointly processed SNP set for cultivated lettuce (L. sativa) and its wild progenitor (L. serriola) to dissect trait loci. Known and novel QTLs for anthocyanin accumulation, leaf morphology, and pathogen resistance were identified, with several L. serriola‑specific QTLs revealing unique genetic architectures, underscoring the breeding value of wild lettuce species.

Lactuca wild relatives anthocyanin accumulation leaf morphology pathogen resistance GWAS

Comparative multi-omics profiling of Gossypium hirsutum and Gossypium barbadense fibers at high temporal resolution reveals key differences in polysaccharide composition and associated glycosyltransferases

Authors: Swaminathan, S., Lee, Y., Grover, C. E., DeTemple, M. F., Mugisha, A. S., Sichterman, L. E., Yang, P., Xie, J., Wendel, J. F., Szymanski, D. B., Zabotina, O. A.

Date: 2025-04-30 · Version: 1
DOI: 10.1101/2025.04.26.650795

Category: Plant Biology

Model Organism: Multi-species

AI Summary

The study performed daily large-scale glycome, transcriptome, and proteome profiling of developing fibers from the two cultivated cotton species, Gossypium barbadense and G. hirsutum, across primary and secondary cell wall stages. It identified delayed cellulose accumulation and distinct compositions of xyloglucans, homogalacturonans, rhamnogalacturonan‑I, and heteroxylans in G. barbadense, along with higher expression of specific glycosyltransferases and expansins, suggesting these molecular differences underlie the superior fiber length and strength of G. barbadense.

cotton fiber development polysaccharide composition glycome profiling transcriptomics glycosyltransferases

Large-scale single-cell profiling of stem cells uncovers redundant regulators of shoot development and yield trait variation

Authors: Xu, X., Passalacqua, M., Rice, B., Demesa-Arevalo, E., Kojima, M., Takebayashi, Y., Harris, B., Sakakibara, H., Gallavotti, A., Gillis, J., Jackson, D.

Date: 2025-04-17 · Version: 2
DOI: 10.1101/2024.03.04.583414

Category: Plant Biology

Model Organism: Multi-species

AI Summary

The study finely dissected shoot stem cell–enriched tissues from maize and Arabidopsis thaliana and optimized single‑cell RNA‑seq protocols to reliably capture CLAVATA3 and WUSCHEL‑expressing cells. Cross‑species comparison and functional validation, including spatial transcriptomics and mutant analyses, revealed conserved ribosome‑associated RNA‑binding proteins and sugar‑kinase families as key regulators linked to shoot development and yield traits.

single-cell RNA sequencing shoot stem cells Arabidopsis thaliana Zea mays stem cell regulators