BACKGROUND Common rosemallow (Hibiscus moscheutos (L.)) is a native wetland perennial taxon that has been widely used as an ornamental landscape plant for several decades. Its showy blooms, attractive form and foliage, and hardiness attracted the attention of plant enthusiasts, leading to extensive hybridization and subsequent selection of superior genotypes. Red foliage color is a desirable trait, therefore we investigated the mode of inheritance of this trait in H. moscheutos subsp. lasiocarpos (Cavanilles) O. J. Blanchard with intraspecific hybrids of H. moscheutos subsp. moscheutos (L.). RESULTS Two red-foliaged seed parents of Hibiscus moscheutos subsp. moscheutos (L.) were crossed with green-foliaged paternal parent H. moscheutos subsp. lasiocarpos. Two F2 full-sib families (n = 192 and 238) were each found to fit a 3 red: 1 green segregation ratio for foliage color using a Chi square goodness-of-fit analysis. For further evaluation of this segregation pattern, each parent was selfed, as were two red-foliaged F2 plants. The two red-foliaged parents yielded the expected all-red progeny (n = 53 and 178, 1 red: 0 green) and the green-foliaged parent yielded 244 green and 6 red plants, fitting the expected 0 red: 1 green (P = 0.704) ratio. Additionally, progeny from the two red-foliaged F2 plants fit the expected 1 red: 0 green ratio (n = 135 and 120). CONCLUSIONS Results indicate the appearance of red foliage, in any amount, in the two subspecies utilized and our hybrids of hibiscus to be controlled by a single locus with a dominant allele for red foliage. We propose the gene be called "green foliage" where the dominant allele, G, yields a red foliage phenotype. When the recessive allele, g, is present in the homozygous form, progeny consist of an all-green foliage phenotype for Hibiscus moscheutos (L.). Understanding the mode of inheritance of red-foliage phenotype in hibiscus would prove useful in further ornamental breeding work.

中文翻译：

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普通蔷薇（Hibiscus moscheutos（L.））亚种杂种的叶色遗传。

背景技术普通的玫瑰锦葵（Hibiscus moscheutos（L.））是原生的湿地多年生生物分类群，几十年来已被广泛用作观赏性园林植物。其艳丽的花朵，诱人的形式和叶子以及坚韧的特性吸引了植物爱好者的注意力，从而导致了广泛的杂交和随后的优良基因型的选择。红叶色是理想的性状，因此我们研究了该性状在moscheutos亚种中的遗传模式。lasiocarpos（Cavanilles）OJ Blanchard与H. moscheutos亚种的种内杂种。moscheutos（L.）。结果木槿moscheutos亚种的两个红叶种子父母。moscheutos（L.）与绿叶的父本H. moscheutos亚种杂交。lasiocarpos。发现两个F2全同胞族（n = 192和238）各自适合3红色：使用卡方拟合优度分析，得出1种绿色的叶子颜色偏析率。为了进一步评估这种分离模式，每个亲本都进行了自交，两个红叶F2植物也是如此。两个红叶父母产生了预期的全红色后代（n = 53和178，1红色：0绿色），而绿叶父母产生了244绿色和6红色植物，与预期的0红色：1绿色（P = 0.704）。另外，来自两个红色叶子的F2植物的后代符合预期的1红色：0绿色比率（n = 135和120）。结论结果表明，在所利用的两个亚种中，红色叶子的出现量不限，而我们的芙蓉杂种则由一个具有红色等位基因优势等位基因的单一基因座控制。我们建议将该基因称为“绿色叶子”，其中主要等位基因G 产生红色的叶子表型。当隐性等位基因g以纯合子形式存在时，后代由木槿moscheutos（L.）的全绿叶表型组成。了解芙蓉红叶表型的遗传模式将有助于进一步的观赏育种工作。