PbIAA26在梨花诱导中起重要作用

IF 3.9 2区 农林科学 Q1 HORTICULTURE
Shuliang Zhao , Kairan Hu , Jinhua Du , Ziyi Zhang , Xing Han , Lixuan Deng , Hongguang Pang , Chunli Jiao , Qingjiang Wang , Fuhou Cheng
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引用次数: 0

摘要

生长素是调控植物生长发育的关键激素之一。AUX/IAA基因属于生长素早期应答基因,对其在多年生木本植物诱导花中的作用知之甚少。本研究通过分析梨叶片中与花诱导信号相关的基因转录水平,对AUX/IAA基因31333进行了研究,并将其更名为PbIAA26。另外,在梨中鉴定出30个AUX/IAA基因(PbIAAs),这些基因不均匀分布在10条染色体上,通过系统发育树将它们划分为11个类群。扫描PbIAAs启动子的顺式元件为其他研究者研究调节性PbIAAs的表达奠定了基础。在花诱导过程中,除了PbIAA26外,PbIAAs在短枝叶和长枝叶中的表达基本一致。同时,PbIAA26过表达在拟南芥中表现出早开花的性状。这一发现证明PbIAA26在梨花诱导中起重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PbIAA26 plays an important role in pear floral induction
Auxin is one of the key hormones in regulating plant growth and development. AUX/IAA genes belong to the early auxin response gene, and little was known about the role in floral induction of perennial woody plants. In this study, an AUX/IAA gene gene31333, that was renamed PbIAA26, was concerned by analyzing the gene transcription level of leaves related to the signal of floral induction in pear. In addition, 30 AUX/IAA genes (PbIAAs) were identified in pear, which were unevenly distributed on 10 chromosomes and classified into eleven groups by phylogenetic tree. Scanning cis-elements of PbIAAs promoters laid the foundation for other researchers to study the expression of regulatory PbIAAs. The expression of PbIAAs were similar in short branch leaves and long branch leaves during floral induction, except for PbIAA26. Meanwhile, overexpression of PbIAA26 in Arabidopsis showed early flowering traits. This discovery proved that PbIAA26 plays an important role in pear floral induction.
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来源期刊
Scientia Horticulturae
Scientia Horticulturae 农林科学-园艺
CiteScore
8.60
自引率
4.70%
发文量
796
审稿时长
47 days
期刊介绍: Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.
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