Mining the apple genome reveals a family of nine ethylene receptor genes

被引:21
作者
Ireland, Hilary S. [1 ]
Guillen, Fabian [2 ]
Bowen, Judith [1 ]
Tacken, Emma J. [1 ,3 ]
Putterill, Jo [3 ]
Schaffer, Robert J. [1 ,3 ]
Johnston, Jason W. [1 ]
机构
[1] New Zealand Inst Plant & Food Res Ltd PER, Mt Albert, Auckland 1142, New Zealand
[2] Univ Miguel Hernandez, Alicante 03312, Spain
[3] Univ Auckland, Auckland 1142, New Zealand
关键词
Apple; Ethylene receptors; Genome location; Multi-gene families; Ripening; DOMESTICA BORKH; TOMATO FRUIT; PERCEPTION; EXPRESSION; 1-MCP;
D O I
10.1016/j.postharvbio.2012.05.003
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Ripening in apple is mediated though the hormone ethylene in a dose-dependent manner. From work in model plants, it is known that the ethylene receptors are negative modulators of the ethylene signal, and therefore likely to play an important part in apple fruit ripening. Our mining of the recently completed whole apple genome identified a total of nine receptor genes, including three new sequences. Phylogenetic comparisons with other fruit species identified each of the homeologous pairs. Using ACC OXIDASE 1-suppressed apple fruit induced with ethylene, eight genes were expressed in fruit, while the ninth gene remains a predicted gene model with no current supporting evidence for expression. Five genes were upregulated by ethylene within 12 h of treatment. This study demonstrates the potential for the whole genome sequence to be used as a resource for determining large multi-gene families important for postharvest responses in apple. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:42 / 46
页数:5
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