Publications by authors named "Lianan Guo"

Article Synopsis
  • Coptis chinensis is a perennial herb found primarily in southeastern China and has been used in traditional medicine for over 2000 years.
  • A high-quality genome for C. chinensis has been sequenced, revealing a size of approximately 958.20 Mb and indicating that its large genome is due to the amplification of long terminal repeat retrotransposons and an ancestral whole-genome duplication.
  • Key genes associated with the berberine metabolic pathway were identified, and it's noted that the roots of C. chinensis produce the highest levels of berberine in the third and fourth years, providing valuable data for future research and breeding.
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Leaf color is directly associated with plant photosynthesis. Here, we have isolated and identified a spontaneous rice mutant named yd1 that has yellowish leaves and dwarf stature. Map-based cloning reveals that YD1 encodes a previously reported kinesin protein from the kinesin-4 subfamily, BC12/GDD1.

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Appearance quality is an important determinant of rice quality. Many genes that affect grain appearance quality have been identified, but the regulatory mechanisms that contribute to this trait remain unclear. Here, two grains with chalkiness (gwc1) mutants, gwc1-1 and gwc1-2, were identified from an EMS-mutagenized population of indica rice cultivar Shuhui498 (R498).

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Grain filling is a complex agronomic trait that directly determines grain weight and quality in rice (). Nevertheless, key factors affecting grain filling remain poorly understood. Here, we identified a grain filling gene, , encoding a pyruvate kinase (PK).

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Using ethyl methanesulfonate (EMS) mutagenesis, we isolated an erect panicle mutant, R1338, from indica heavy-panicle restorer Shuhui498. Compared with wild type control, the mutant displayed dwarfism, erect and short panicle, short primary panicle branch, increased grain density, short grain length and increased grain thickness. In addition, the erect panicle architecture of R1388 resulted in significant decreased bending moment and increased resistance to panicle bending.

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