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IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-01
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引用次数: 0
Localization of heterosis loci for quality traits and identification of candidate genes in Brassica napus 甘蓝型油菜品质性状杂种优势位点定位及候选基因鉴定。
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2025-12-31 DOI: 10.1016/j.jplph.2025.154687
Guoqiang Zheng , Ying Wang , Jiaping Wei , Zefeng Wu , Jinxiong Wang , Qi Yang , Junmei Cui , Yan Fang , Xiaoyun Dong , Xinyi Zhang , Qian Luo , Jiayue Yang , Zigang Liu
The quality traits of rapeseed are critical genetic characteristics that determine seed value and its applications. Heterosis manifests not only in yield traits but also in quality traits. In this study, multiple interspecific and intraspecific hybrid crosses were generated to evaluate their heterosis effects. Our results demonstrated that the heterosis of oil content, oleic acid, linoleic acid, and linolenic acid was higher in the winter × spring crosses than in the winter × winter crosses, whereas the opposite was true for erucic acid and glucosinolate. Furthermore, we identified a substantial numerous SNP markers through targeted sequencing and mapped the heterosis-related loci for the corresponding traits in the F1 population. A lot of 233, 46, 247, 192, 203, and 64 QTLs were identified as being associated with the seed traits of erucic acid, glucosinolates, oleic acid, linoleic acid, linolenic acid, oil content and their heterosis. These were consolidated into 425 consensus QTLs (cq-QTLs). By integrating RNA-seq data, we identified 10 pathways involved in lipid and pyruvate metabolism, among which 28 candidate genes were annotated. These conclusions showed that these cq-QTLs can serve as hotspots for mining regulatory genes related to the heterosis of rapeseed quality traits, laying a foundation for research on the heterosis of rapeseed quality traits.
油菜籽品质性状是决定油菜籽价值及其应用的关键遗传性状。杂种优势不仅表现在产量性状上,也表现在品质性状上。本研究通过建立多个种间和种内杂交组合来评价其杂种优势效应。结果表明,冬×春杂交中油酸、亚油酸和亚麻酸的杂种优势高于冬×冬杂交,而芥酸和硫代葡萄糖苷的杂种优势则相反。此外,我们通过靶向测序鉴定了大量SNP标记,并绘制了F1群体中相应性状的杂种优势相关位点。其中233个、46个、247个、192个、203个和64个qtl与芥酸、硫代葡萄糖苷、油酸、亚油酸、亚麻酸、含油量及其杂种优势性状相关。这些被整合成425个共识qtl (cq- qtl)。通过整合RNA-seq数据,我们确定了10个参与脂质和丙酮酸代谢的途径,其中28个候选基因被注释。综上所述,这些cq- qtl可作为油菜籽品质性状杂种优势相关调控基因挖掘的热点,为油菜籽品质性状杂种优势研究奠定基础。
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引用次数: 0
Overexpression of mango GF14I1 and GF14I2 promotes early flowering and enhances abiotic stress tolerance in Arabidopsis 芒果GF14I1和GF14I2的过表达促进了拟南芥的早期开花并增强了非生物胁迫的耐受性。
IF 4.1 3区 生物学 Q1 PLANT SCIENCES Pub Date : 2025-12-30 DOI: 10.1016/j.jplph.2025.154685
Jumei Wei, Liming Xia, Tianli Guo, Yanshu Meng, Kaijiang Li, Moying Lan, Yi Nai, Wenting Wu, Shuquan Chen, Weiqiaochu He, Xinhua He, Cong Luo
14-3-3 proteins, also called G-box factor 14-3-3 homologs (GF14) or G-box regulatory factors (GRFs), are highly abundant and involved in a variety of physiological regulatory processes, especially in flowering and stress regulation. This study selected a pair of GF14 genes, MiGF14I1 and MiGF14I2, which exhibit distinct intron and exon numbers, for functional characterization. MiGF14I1 and MiGF14I2 are expressed in various mango tissues, with particularly high expression levels detected in flowers. In addition, MiGF14I1 and MiGF14I2 were significantly upregulated under low-temperature, salt, and drought treatments. The overexpression of MiGF14I1 and MiGF14I2 in Arabidopsis resulted in early flowering and upregulated the expression of the bZIP transcription factors FD (AtFD), SQUAMOSA-promoter binding protein-like (AtSPL) and APETALA1 (AtAP1) in Arabidopsis. The MiGF14I1 and MiGF14I2 overexpression lines presented significantly increased germination rates, root lengths and survival rates under stress. Compared with those in the control plants, the contents of malondialdehyde (MDA) and H2O2 were significantly lower, whereas the content of proline was significantly greater in the transgenic plants. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) analyses revealed that MiGF14I interacted with the flowering-related proteins MiFD and FLOWERING LOCUS T (MiFT) and with several stress-related proteins, namely, NAM/ATAF1/2/CUC2 (MiNAC7), MYB30-INTERACTING E3 LIGASE 1 (MiMIEL1) and zinc finger protein 4 (MiZFP4). Moreover, yeast three-hybrid and luciferase complementation assay (LCA) analyses revealed that MiGF14I acts as a bridge to increase the interaction of MiFT with MiFD, which may lead to the formation of the flowering activation complex (FAC) of mango. These findings suggest that the MiGF14I1 and MiGF14I2 genes may play important roles in flowering and stress response in mango.
14-3-3蛋白又称G-box因子14-3-3同源物(GF14)或G-box调控因子(GRFs),是一种丰富的蛋白质,参与多种生理调控过程,特别是在开花和胁迫调控中。本研究选择了一对具有不同内含子和外显子数量的GF14基因MiGF14I1和MiGF14I2进行功能表征。MiGF14I1和MiGF14I2在芒果的各种组织中都有表达,在花中表达水平特别高。此外,MiGF14I1和MiGF14I2在低温、盐和干旱处理下均显著上调。MiGF14I1和MiGF14I2在拟南芥中过表达导致开花提前,并上调bZIP转录因子FD (AtFD)、SQUAMOSA-promoter binding protein-like (AtSPL)和APETALA1 (AtAP1)的表达。胁迫下,MiGF14I1和MiGF14I2过表达系的发芽率、根长和成活率均显著提高。与对照植株相比,转基因植株丙二醛(MDA)和H2O2含量显著降低,脯氨酸含量显著升高。酵母双杂交(Y2H)和双分子荧光互补(BiFC)分析显示,MiGF14I与开花相关蛋白MiFD和开花位点T (MiFT)以及几种胁迫相关蛋白,即NAM/ATAF1/2/CUC2 (MiNAC7)、myb30 - interaction E3 LIGASE 1 (MiMIEL1)和锌指蛋白4 (MiZFP4)相互作用。此外,酵母三杂交和荧光素酶互补试验(LCA)分析表明,MiGF14I作为桥梁增加了MiFT与MiFD的相互作用,这可能导致芒果开花激活复合物(FAC)的形成。这些发现提示MiGF14I1和MiGF14I2基因可能在芒果开花和胁迫反应中发挥重要作用。
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引用次数: 0
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Journal of plant physiology
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