دورية أكاديمية

A Preliminary Study on the Identification of Genes Involved in Lignification in the Endocarp of Bared-Nut Walnut (Juglans regia L.) in Xinjiang, China

التفاصيل البيبلوغرافية
العنوان: A Preliminary Study on the Identification of Genes Involved in Lignification in the Endocarp of Bared-Nut Walnut (Juglans regia L.) in Xinjiang, China
المؤلفون: Shangqi Yu, Jiazhi Fu, Qian Ye, Pengyu Wu, Jianping Bao, Haifang Hu, Zhongzhong Guo, Rui Zhang, Qiang Jin
المصدر: Horticulturae, Vol 10, Iss 5, p 487 (2024)
بيانات النشر: MDPI AG, 2024.
سنة النشر: 2024
المجموعة: LCC:Plant culture
مصطلحات موضوعية: walnut, bared-nut, sinapyl alcohol, lignin monomers, Plant culture, SB1-1110
الوصف: This study focused on the “Xinlu” walnut and explored the molecular regulatory mechanism of lignin synthesis in the endocarp, aiming to explain the formation of bared-nut walnuts through morphological, metabolomic, and transcriptomic techniques. It was found that the synthesis of lignin, cellulose, p-coumaryl alcohol, and sinapyl alcohol was severely inhibited in the pulpy-hue (PUH) of the endocarp. We obtained 14 modules (gene sets) significantly correlated with the lignification factor (LIG) and 1548 hub genes. Additionally, we identified a MEplum3 module involved in endocarp lignin synthesis, primarily participating in phenylalanine biosynthesis and the lignin biosynthetic process. Meanwhile, we constructed a gene co-expression network for the MEplum3 module and identified a key hub gene for lignin synthesis—JrCAD10. Among the different tissues of “Xinlu”, the expression level of JrCAD10 in the scleritic-hue (SCH) was significantly higher than in other tissues, with a relative copy number (RCN) of 3.2. However, JrCAD10 expression was severely suppressed in the PUH. The suppression of JrCAD10 expression led to the inhibition of lignin monomer synthesis, which further resulted in inhibited lignin synthesis, thus forming the bared-nut walnut. Our findings provide new insights into understanding the regulation of lignin synthesis and offer a possible explanation for the formation of bared-nut walnuts.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2311-7524
Relation: https://www.mdpi.com/2311-7524/10/5/487; https://doaj.org/toc/2311-7524
DOI: 10.3390/horticulturae10050487
URL الوصول: https://doaj.org/article/88aa85a479d7455f9474e60856a14681
رقم الأكسشن: edsdoj.88aa85a479d7455f9474e60856a14681
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:23117524
DOI:10.3390/horticulturae10050487