Cytology and Morphology of Ovule Culture-derived Interspecific Impatiens Hybrids
Cytology and Morphology of Ovule Culture-derived Interspecific Impatiens Hybrids
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胚珠培养衍生的种间凤仙花杂交种的细胞学和形态学
DOI：
10.21273/jashs.112.6.1026
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发表时间：
1987
影响因子：
1.9
通讯作者：
T. Arisumi
中科院分区：
文献类型：
--
作者：
T. Arisumi
非洲凤仙花、印度凤仙花和新几内亚凤仙花的杂交后代为整倍体，不育。除少数外，所有的都发育成正常的成熟植物。某些杂交性状的分类显示115中亲，75种子或花粉亲本，和17不像父母。杂种和亲本的表型分析表明，以下系统发育趋势可能是由显性或部分显性基因调节的：从相等到不等的花瓣，从扁平到兜状的背侧花瓣，从总状到无梗花序，从近离生到明显融合的侧花瓣，从唇瓣和丝状距到颊状或囊状的唇瓣。螺旋叶序比轮生叶序占优势。被认为在观赏育种中有用的杂交种有I。auricoma × I. sultani 'Elfin白色'或新几内亚种的黄花，I。uguenensis × New Guinea或I. flaccida的耐旱性较强，I.松叶变种重瓣花的匍匐茎或“小精灵白色”。
Hybrids among African, Indian, and New Guinea Impatiens were euploids and sterile. All but a few developed into normal mature plants. Classification of certain hybrid traits showed 115 mid-parental, 75 either seed- or pollen-parental, and 17 resembling neither parent. Data from phenotypic analysis of hybrids and parents suggested that the following phylogenetic trends could have been conditioned by dominant or partially dominant genes: from equal to unequal petals, flat to hooded dorsal petal, racemose to epedunculate inflorescence, nearly free to markedly fused lateral petals, and lower sepal and a filiform spur to bucciniform or saccate lower sepal. Spiral phyllotaxy was dominant over whorled. Crosses thought to be useful in ornamental breeding were I. auricoma × I. sultani ‘Elfin White’ or New Guinea species for yellow flowers, I. uguenensis × New Guinea or I. flaccida for drought tolerance, and I. flaccida × I. repens or ‘Elfin White’ for double flowers.