A Phalaenopsis variety with floral organs showing C class homeotic transformation and its revertant may enable Phalaenopsis as a potential molecular genetic material
A Phalaenopsis variety with floral organs showing C class homeotic transformation and its revertant may enable Phalaenopsis as a potential molecular genetic material
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DOI：
10.1266/ggs.86.93
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发表时间：
2011-04-01
影响因子：
1.1
通讯作者：
Sawa, Shinichiro
中科院分区：
文献类型：
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作者：
Ejima, Chika;Kobayashi, Yuuki;Sawa, Shinichiro
兰科植物是世界著名的园林植物之一，兰科植物的改良在园艺界具有重要意义。然而，分子信息在很大程度上是未知的。我们发现一个蝴蝶兰品种的花器官具有C类同源异型变化。柱由花药组成，野生型的花药下面有接受柱头的表面。而C类品种则为柱型，背面具萼片或花瓣状结构。这是植物中C类突变体的典型异常。此外，从分生组织培养群体中发现了野生型回复突变体。这一结果有力地表明了蝴蝶兰基因组中存在活性转座因子。该转座子可作为兰科植物分子遗传学研究的良好材料。
The Orchidaceae is one of the most famous garden plants, and improvement of the orchid is very important in horticulture field. However, molecular information is largely unknown. We found a Phalaenopsis variety harboring floral organs showing C class homeotic change. Column is composed of the anthers with the receptive stigmatic surface just underneath them in wild type. However the C class variety produced column with sepal or petal like structure at the abaxial side. This is the typical abnormality as C class mutants in plants. Further, wild type looking revertant was found from the meristem tissue cultured population. This result strongly indicates the existence of active transposable element in Phalaenopsis genome. This transposon may enable Phalaenopsis as a good material for molecular genetic analysis in Orchidaceae.