A SEPALLATA gene is involved in the development and ripening of strawberry (Fragaria x ananassa Duch.) fruit, a non-climacteric tissue.
A SEPALLATA gene is involved in the development and ripening of strawberry (Fragaria x ananassa Duch.) fruit, a non-climacteric tissue.
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DOI：
10.1093/jxb/erq360
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发表时间：
2011-01
影响因子：
6.9
通讯作者：
Manning K
中科院分区：
文献类型：
--
作者：
Seymour GB;Ryder CD;Cevik V;Hammond JP;Popovich A;King GJ;Vrebalov J;Giovannoni JJ;Manning K
跃变型果实和非跃变型果实传统上被认为代表了两种不同的成熟程序，这两种成熟程序与差异呼吸和乙烯激素效应有关。在跃变型水果中，如番茄和香蕉，成熟过程以呼吸增加为标志，并由乙烯诱导和协调，而在非跃变型水果中，如草莓和葡萄，成熟过程由不依赖乙烯的过程控制，呼吸速率变化不大。然而，这两种截然不同的机制都导致了质地、颜色和味道的变化，这可能反映了一些共同的监管计划。已经表明SEPALLATA（SEP）4-like基因是番茄正常成熟所必需的。在此已经证明，在草莓中沉默与果实相关的SEP 1/2样（FaMADS9）基因导致花瓣、瘦果和花托组织的正常发育和成熟的抑制。此外，转录组谱分析揭示了FaMADS9对果实发育和成熟相关基因表达的多效性作用。因此，SEP基因在跃变型和非跃变型果实成熟的发育调控中起着重要作用。这些发现提供了重要的信息，以扩大成熟的非跃变型水果的分子控制超出了有限的遗传和文化的选择，目前可用。
Climacteric and non-climacteric fruits have traditionally been viewed as representing two distinct programmes of ripening associated with differential respiration and ethylene hormone effects. In climacteric fruits, such as tomato and banana, the ripening process is marked by increased respiration and is induced and co-ordinated by ethylene, while in non-climacteric fruits, such as strawberry and grape, it is controlled by an ethylene-independent process with little change in respiration rate. The two contrasting mechanisms, however, both lead to texture, colour, and flavour changes that probably reflect some common programmes of regulatory control. It has been shown that a SEPALLATA(SEP)4-like gene is necessary for normal ripening in tomato. It has been demonstrated here that silencing a fruit-related SEP1/2-like (FaMADS9) gene in strawberry leads to the inhibition of normal development and ripening in the petal, achene, and receptacle tissues. In addition, analysis of transcriptome profiles reveals pleiotropic effects of FaMADS9 on fruit development and ripening-related gene expression. It is concluded that SEP genes play a central role in the developmental regulation of ripening in both climacteric and non-climacteric fruits. These findings provide important information to extend the molecular control of ripening in a non-climacteric fruit beyond the limited genetic and cultural options currently available.
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影响因子：
9.4
作者：
Hammond, JP;Bowen, HC;Broadley, MR
通讯作者：
Broadley, MR
影响因子：
6.9
作者：
Ferr치ndiz, C
通讯作者：
Ferr치ndiz, C
影响因子：
56.9
作者：
Vrebalov, J;Ruezinsky, D;Giovannoni, J
通讯作者：
Giovannoni, J
影响因子：
3.3
作者：
Zahn, LM;King, HZ;Ma, H
通讯作者：
Ma, H
影响因子：
4.3
作者：
GIVEN, NK;VENIS, MA;GRIERSON, D
通讯作者：
GRIERSON, D