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Developmental transcriptome profiling uncovered carbon signaling genes associated with almond fruit drop

文献类型： 外文期刊

作者： Guo, Chunmiao 1 ; Wei, Yu 3 ; Yang, Bo 4 ; Ayup, Mubarek 4 ; Li, Ning 4 ; Liu, Jun 3 ; Liao, Kang 1 ; Wang, Huan 2 ;

作者机构： 1.Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China

2.Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing 100081, Peoples R China

3.Chinese Acad Agr Sci, Inst Crop Sci, Nat Key Facil Crop Resources & Genet Improvement, Beijing 100081, Peoples R China

4.Xinjiang Acad Agr Sci, Inst Hort Crops, Urumqi 830091, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.38； 五年影响因子：5.134 ）

ISSN： 2045-2322

年卷期： 2021 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Almond is one of the most featured nut crops owing to its high nutritional value. However, due to three different waves of flower and fruitlet drop, fruit drop is a major concern for growers. In this study, we carried out a time-course transcriptome analysis to investigate gene expression differences between normal and abnormal fruitlet development. By de novo assembly analysis, we identified 33,577 unigenes and provided their functional annotations. In total, we identified 7,469 differentially expressed genes and observed the most apparent difference between normal and abnormal fruits at 12 and 17 days after flowering. Their biological functions were enriched in carbon metabolism, carbon fixation in photosynthetic organisms and plant hormone signal transduction. RT-qPCR validated the expression pattern of 14 representative genes, including glycosyltransferase like family 2, MYB39, IAA13, gibberellin-regulated protein 11-like and POD44, which confirmed the reliability of our transcriptome data. This study provides an insight into the association between abnormal fruit development and carbohydrate signaling from the early developmental stages and could be served as useful information for understanding the regulatory mechanisms related to almond fruit drop.

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