Publications by authors named "Yihao Zang"

Bracts are leaf-like structures in flowering plants. They serve multiple functions such as attracting pollinators, aiding tolerance of abiotic stressors, and conducting photosynthesis. While previous studies extensively examine bract function, the molecular mechanisms underlying bract growth remain unknown.

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Article Synopsis
  • Leaf shape is a key trait in crop breeding, but the genetic mechanisms behind leaf formation in cotton are not well understood.
  • A study identifies the gene GHCU as crucial for leaf flattening, and its absence leads to abnormal, upward-curled leaves in cotton and tobacco mutants.
  • GHCU helps transport the KNOTTED1-like protein (KNGH1), affecting auxin distribution and response, which is essential for proper leaf development.
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Numerous endogenous and environmental signals regulate the intricate and highly orchestrated process of plant senescence. Ethylene (ET), which accumulates as senescence progresses, is a major promoter of leaf senescence. The master transcription activator ETHYLENE INSENSITIVE3 (EIN3) activates the expression of a wide range of downstream genes during leaf senescence.

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Plants sense and respond to fluctuating temperature and light conditions during the circadian cycle; however, the molecular mechanism underlying plant adaptability during daytime warm conditions remains poorly understood. In this study, we reveal that the ectopic regulation of a HEAT RESPONSIVE PROTEIN (GhHRP) controls the adaptation and survival of cotton (Gossypium hirsutum) plants in response to warm conditions via modulating phytohormone signaling. Increased ambient temperature promptly enhanced the binding of the phytochrome interacting factor 4 (GhPIF4)/ethylene-insensitive 3 (GhEIN3) complex to the GhHRP promoter to increase its mRNA level.

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  • Verticillium wilt is a major disease affecting cotton and other important plants, leading to decreased production and quality, particularly in cotton.
  • The study compared two cotton species, Hai7124 (more resistant) and TM-1 (less resistant), using RNA-Sequencing to understand their differing resistances.
  • Findings revealed that Hai7124 responded faster and had higher expression of defense-related genes, which could help in breeding cotton varieties that are more resistant to Verticillium wilt.
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Objective: Determine the effect of secondary cell wall (SCW) thickness and microcrystalline cellulose content (MCC) on mature fiber strength (FS) and reveal through comparative transcriptome analysis the molecular regulation network governing FS in cotton.

Results: Transmission electron microscope (TEM) analysis of two parent varieties, Prema with elite FS and 86-1 with weak fiber, revealed significant difference in the SCW but not in MCC. Transcriptome analysis revealed that genes differentially expressed during SCW thickening (20 DPA) are highly related to FS; in particular, up-regulated genes such as UDPG, CESA2, and NAC83 were important in SCW thickening, likely contributing to higher FS.

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The cotton (Gossypium hirsutum) pigment gland is a distinctive structure that functions as the main deposit organ of gossypol and its derivatives. It is also an ideal system in which to study cell differentiation and organogenesis. However, only a few genes that determine the process of gland formation have been reported, including GoPGF, CGP1, and CGFs; the molecular mechanisms underlying gland initiation are still largely unclear.

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Cotton fiber is an excellent model for studying plant cell elongation and cell wall biogenesis as well because they are highly polarized and use conserved polarized diffuse growth mechanism. Fiber strength is an important trait among cotton fiber qualities due to ongoing changes in spinning technology. However, the molecular mechanism of fiber strength forming is obscure.

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  • Xinjiang is the world's top cotton-producing region, with advancements in Upland cotton cultivars achieved through selective breeding and cross-breeding with elite varieties from the former Soviet Union and other areas.
  • Genomic analysis of seven historical foundation cultivars and seventy modern Xinjiang cultivars revealed a significant genetic connection, indicating that Soviet cultivars greatly influenced local cotton improvement.
  • Key genes identified, like GhAATF1, GhmTERF1, and GhARF3, play crucial roles in factors such as lint percentage and fiber quality, offering valuable insights for future cotton breeding efforts.
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Allotetraploid cotton is an economically important natural-fiber-producing crop worldwide. After polyploidization, Gossypium hirsutum L. evolved to produce a higher fiber yield and to better survive harsh environments than Gossypium barbadense, which produces superior-quality fibers.

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Chloroplast movement mediated by the plant-specific phototropin blue light photoreceptors is crucial for plants to cope with fluctuating light conditions. While chloroplasts accumulate at weak light-illuminated areas, chloroplast avoidance response mediated primarily by the phototropin2 (phot2) receptor is induced by strong light illumination. Although extensive studies have been performed on phot2-mediated chloroplast avoidance in the model plant Arabidopsis, little is known on the role of the corresponding PHOT2 orthologs in chloroplast movement in cotton.

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