Publications by authors named "Shandang Shi"
Article Synopsis
- Licorice, specifically from the Glycyrrhiza genus, has a long history as a medicinal plant, but its genetic and evolutionary complexities are not fully understood.
- Researchers developed whole-chromosome painting probes to analyze the chromosomes of licorice and found that the chromosomal structures have remained highly conserved over millions of years, with no significant rearrangements between species.
- The study also identified a new triploid seed of G. glandulosa in China, indicating a polyploid evolutionary pathway, which challenges previous ideas that only diploid forms existed in nature.
Brown cotton is a major cultivar of naturally colored cotton, and brown cotton fibers (BCFs) are widely utilized as raw materials for textile industry production due to their advantages of being green and dyeing-pollution-free. However, the mechanisms underlying the pigmentation in fibers are still poorly understood, which significantly limits their extensive applications in related fields. In this study, we conducted a multidimensional comparative analysis of the transcriptomes and metabolomes between brown and white fibers at different developmental periods to identify the key genes and pathways regulating the pigment deposition.
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- - TKS (Taraxacum kok-saghyz) is being studied as a potential source for natural rubber production, focusing on understanding the biosynthesis mechanisms to enhance rubber yields.
- - The study identifies and analyzes the small rubber particle protein (SRPP) and rubber elongation factor (REF) gene families in Russian dandelion, revealing their evolutionary relationships and functional domains.
- - Results indicate that gene expression increases in response to ethylene and methyl jasmonate, providing a foundation for future genetic breeding efforts to optimize rubber production.
Article Synopsis
- BBX proteins are zinc finger transcription factors that are crucial for plant growth and metabolism, and this study focuses on their expression in alfalfa under various stress conditions.
- Researchers identified 125 BBX gene family members in diploid and tetraploid alfalfa, categorizing them into five subfamilies and revealing their conserved motifs and expression patterns across different tissues.
- The study found specific expression responses of these genes to abiotic stresses like salt and salicylic acid, confirmed through qRT-PCR and subcellular localization studies, indicating their potential role in stress tolerance.
Sunflowers are well-known ornamental plants, while sunflowers with red corolla are rare and the mechanisms underlying red coloration remain unclear. Here, a comprehensive analysis of metabolomics and transcriptomics on flavonoid pathway was performed to investigate the molecular mechanisms underlying the differential color formation between red sunflower Pc103 and two yellow sunflowers (Yr17 and Y35). Targeted metabolomic analysis revealed higher anthocyanin levels but lower flavonol content in Pc103 compared to the yellow cultivars.
View Article and Find Full Text PDFBackground: Rice plants suffer from the rising temperature which is becoming more and more prominent. Mining heat-resistant genes and applying them to rice breeding is a feasible and effective way to solve the problem.
Result: Three main biomass traits, including shoot length, dry weight, and fresh weight, changed after abnormally high-temperature treatment in the rice seedling stage of a recombinant inbred lines and the natural indica germplasm population.
Article Synopsis
- Researchers screened 205 Chinese wheat cultivars for resistance to crown rot (CR) and Fusarium head blight (FHB), two severe wheat diseases in China.
- Cunmai633, LS4607, and several others showed significant resistance to CR, with various levels of resistance observed in other cultivars.
- Most cultivars were susceptible to FHB, but some, like Zhongyu1526 and Yangao168, displayed good resistance, indicating potential for breeding programs to enhance disease resistance.
Cuticular wax accumulation and composition affects drought resistance in plants. plants subjected to water deficit and polyethylene glycol treatments resulted in a significant increase in total wax load, in which very-long-chain (VLC) alkanes were more sensitive to these treatments than other wax compounds, implying that VLC alkanes biosynthesis plays a more important role in drought resistance in . () has been reported to encode a core enzyme involved in VLC alkanes biosynthesis in Arabidopsis (), but few corresponding genes are investigated in .
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- * Researchers identified TAW1, a gene previously known to promote BM development in rice, and found that a homologous gene in wheat (TtALOG2-1A) plays a key role in regulating the transition of indeterminate BM fate.
- * Further experiments, including RNA-sequencing, suggest that TtALOG genes may influence the activity of other related genes (TtMADS22, TtMADS47, TtMADS55) in promoting BM development,
Article Synopsis
- - The study identifies and classifies 72 amino acid transporters (StAATs) in potatoes, expanding knowledge beyond the previously studied StAAP1 gene.
- - StAAT genes are found across all 12 chromosomes, with around one-third resulting from gene duplication, particularly tandem duplication, which has increased the number of StAATs.
- - Expression analysis shows that StAAT genes have distinct and tissue-specific patterns, suggesting their roles in transporting amino acids over varying distances, providing a base for future research on these transporters.
Article Synopsis
- - The study identified 26 Aux/IAA genes in potato (StIAA1 to StIAA26) and analyzed their conserved domains and phylogenetic relationships with Arabidopsis.
- - RNA-seq and quantitative real-time PCR revealed that 12 StIAA genes are highly expressed during tuber development, particularly in stolon organs and initiation and expansion stages.
- - The findings suggest that StIAA genes play a significant role in potato tuber development and enhance our understanding of the functional roles of auxin-related genes in this process.