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

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 difference...

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Bibliographic Details
Published in:Scientific reports 2021-02, Vol.11 (1), p.3401-3401, Article 3401
Main Authors: Guo, Chunmiao, Wei, Yu, Yang, Bo, Ayup, Mubarek, Li, Ning, Liu, Jun, Liao, Kang, Wang, Huan
Format: Article
Language:English
Subjects:
631/61/191/2018
631/61/212/2019
Carbon
Carbon - metabolism
Carbon fixation
Developmental stages
Flowering
Fruit - genetics
Fruit - metabolism
Fruits
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Plant
Genes, Plant
Gibberellins
Glycosyltransferase
Humanities and Social Sciences
multidisciplinary
Nutritive value
Plant hormones
Prunus dulcis - genetics
Prunus dulcis - metabolism
Science
Science (multidisciplinary)
Signal Transduction
Transcriptomes
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Summary: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.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-69395-z