Floral scent components of the hybrids between Lagerstroemia fauriei and Lagerstroemia 'Tuscarora'

文献类型： 外文期刊

第一作者： Zhou, Ting

作者： Zhou, Ting;Zhou, Yanwei;Li, Yunlong;Wang, Chuanyong;Zhang, Fan;Chong, Xinran;Chen, Hong;Ning, Kun;Han, Wei;Zhang, Donglin

作者机构：

关键词： Lagerstroemia spp; Floral scent; Characteristic compounds; HS-SPME-GC-MS; Genetic rule; Targeted breeding

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.3； 五年影响因子：4.5 ）

ISSN： 0304-4238

年卷期： 2023 年 309 卷

页码：

收录情况： SCI

摘要： Floral scent plays an important role in plant reproduction and has esthetic implications. However, in the genus Lagerstroemia, taxa with distinct fragrances are rare, which limits their economic value. This study used head -space solid-phase microextraction and gas chromatography-mass spectrometry (HS-SPME-GC-MS) to analyze the floral scent components of L. fauriei (female), L. 'Tuscarora' (male), and their fragrant hybrids. Overall, the numbers and types of volatiles differed significantly among the taxa. Seventy-seven volatile compounds were putatively detected, mainly terpenoids (48.05%: 67.82% in L. fauriei, 41.65% in L. 'Tuscarora', 80.29% in L. 'Ningxiang 1', 60.27% in L. 'Ningxiang 2', and 43.84% in L. 'Ningxiang 3'), benzenoids/phenylpropanoids (29.87%: 27.61%, 47.93%, 7.45%, 24.12%, 47.40%), and aliphatics (15.58%: 1.13%, 9.14%, 7.72%, 10.15%, 4.12%), including ( +/- )-2,3-dihydrofarnesol, alpha-farnesene, benzaldehyde, (+)-delta-cadinene, (Z)-beta-farnesene, cis-nerolidol, geraniol, citral, anethole, phenylacetaldehyde, benzyl alcohol, (E)-2-hexenal, 4-methylanisole, methyl geranate, farnesal, eugenol, linalool, (E,E)-farnesal, phenylethyl alcohol, beta-caryophyllene, and farnesol. L. 'Tuscarora' and the hy-brids shared 36 (83.72%) volatiles: 25 (58.14%) with L. 'Ningxiang 1', 28 (65.51%) with L. 'Ningxiang 2', and 31 (72.09%) with L. 'Ningxiang 3', while L. fauriei shared 20 (65.52%): 19 (65.52%) with L. 'Ningxiang 1', 18 (62.07%) with L. 'Ningxiang 2', and 15 (51.72%) with L. 'Ningxiang 3'. This indicates that the components of hybrids' fragrances were more similar to L. 'Tuscarora' when compared with L. fauriei. Unlike from the parents, 9, 14, and 2 unique compounds were identified in the hybrids of L. 'Ningxiang' 1 to 3, respectively, which might contribute to their specific floral scents. Our findings laid a foundation for further understanding the genetic rule of Lagerstroemia floral scent components and provided guidance for its fragrant germplasm breeding.

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