Monoecy and gynomonoecy in Spinacia oleracea L.: Morphological and genetic analyses
Monoecy and gynomonoecy in Spinacia oleracea L.: Morphological and genetic analyses
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DOI：
10.1016/j.scienta.2008.06.008
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发表时间：
2008-10
影响因子：
4.3
通讯作者：
Y. Onodera;Itaru Yonaha;S. Niikura;Seishi Yamazaki;T. Mikami
中科院分区：
文献类型：
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作者：
Y. Onodera;Itaru Yonaha;S. Niikura;Seishi Yamazaki;T. Mikami
以03-336和03-258两个共性菠菜品系为材料，研究了它们的性别表达。我们发现，品系03-336由在同一个体上具有雌花和雄花的植物组成（严格雌雄同株类型），而品系03-258由在同一个体上具有雌花和两性花的植物组成（雌雄同株类型）。有趣的是，当与来自雌雄异株系的雌花植物杂交时，这两个系表现出不同的遗传模式。严格的雌雄同株性状被认为是由已知的等位基因Xm决定的，而雌花同株性状似乎是由一个新的雌雄同株等位基因或可能影响性别表达的修饰基因决定的。
Two cosexual spinach lines, 03-336 and 03-258, were examined to investigate their sex expression. We found that line 03-336 consisted of plants bearing both pistillate and staminate flowers on the same individual (strictly monoecious type), while line 03-258 consisted of plants with both pistillate and hermaphroditic flowers on the same individual (gynomonoecious type). Interestingly, the two lines exhibited distinct patterns of inheritance when crossed with the pistillate plants derived from a dioecious line. The strictly monoecious character was considered to be conditioned by the known allele Xm, whereas the gynomonoecious character appeared to be governed by a novel monoecious allele or modifying gene(s) that may affect the sex expression.