PDF(Pubmed)
Abstract：
BACKGROUND: Heliotropiaceae is a family of the order Boraginales and has over 450 species. The members of the family Heliotropiaceae have been widely reported to be used in traditional medicine Over time, the classification of Heliotropiaceae has remained uncertain and has moved from family to subfamily, or conversely.
RESULTS: In the present study, we sequenced, analyzed, and compared the complete plastomes of Euploca strigosa, Heliotropium arbainense, and Heliotropium longiflorum with the genomes of related taxa. The lengths of the plastomes of E. strigosa, H. arbainense, and H. longiflorum were 155,174 bp, 154,709 bp, and 154,496 bp, respectively. Each plastome consisted of 114 genes: 80 protein-coding genes, 4 ribosomal RNA genes, and 30 transfer RNA genes. The long repeats analysis indicated that reverse, palindromic, complement and forward repeats were all found in the three plastomes. The simple repeats analysis showed that the plastomes of E. strigosa, H. arbainense, and H. longiflorum contained 158, 165, and 151 microsatellites, respectively. The phylogenetic analysis confirmed two major clades in the Boraginales: clade I comprised Boraginaceae, while clade II included Heliotropiaceae, Ehretiaceae, Lennoaceae, and Cordiaceae. Inside the family Heliotropiaceae, E. strigosa is nested within the Heliotropium genus.
CONCLUSIONS: This study expands our knowledge of the evolutionary relationships within Heliotropiaceae and offers useful genetic resources.
RESULTS: In the present study, we sequenced, analyzed, and compared the complete plastomes of Euploca strigosa, Heliotropium arbainense, and Heliotropium longiflorum with the genomes of related taxa. The lengths of the plastomes of E. strigosa, H. arbainense, and H. longiflorum were 155,174 bp, 154,709 bp, and 154,496 bp, respectively. Each plastome consisted of 114 genes: 80 protein-coding genes, 4 ribosomal RNA genes, and 30 transfer RNA genes. The long repeats analysis indicated that reverse, palindromic, complement and forward repeats were all found in the three plastomes. The simple repeats analysis showed that the plastomes of E. strigosa, H. arbainense, and H. longiflorum contained 158, 165, and 151 microsatellites, respectively. The phylogenetic analysis confirmed two major clades in the Boraginales: clade I comprised Boraginaceae, while clade II included Heliotropiaceae, Ehretiaceae, Lennoaceae, and Cordiaceae. Inside the family Heliotropiaceae, E. strigosa is nested within the Heliotropium genus.
CONCLUSIONS: This study expands our knowledge of the evolutionary relationships within Heliotropiaceae and offers useful genetic resources.
摘要：
背景：Heliotropiaceae是Boraginales目的一个科，有450多种。随着时间的推移，Heliotropiaceae家族的成员已被广泛报道用于传统医学，Heliotropiaceae的分类仍然不确定，并且已经从家族转移到亚家族，或者相反。
结果：在本研究中，我们测序了,分析,并比较了Euplocastrigosa的完整质体，阿贝尼托溴铵,与相关分类群的基因组。梭状芽孢杆菌的质体的长度，H.Arbainense,和H.longflorum为155,174bp，154,709个基点，和154,496个基点，分别。每个质体由114个基因组成：80个蛋白质编码基因，4核糖体RNA基因，和30个转移RNA基因。长重复分析表明，反向，回文,补体和正向重复都在三个质体中发现。简单重复分析显示，纹枯病菌的质体，H.Arbainense,H.longflorum包含158、165和151个微卫星，分别。系统发育分析证实了Boraginales中的两个主要进化枝：进化枝I包括Boraginaceae，而进化枝II包括Heliotropiaceae，菊科,Lennoaceae，和科迪科。在Heliotropiaceae家族中，E.strigosa嵌套在Heliotropium属中。
结论：这项研究扩展了我们对类牙科进化关系的认识，并提供了有用的遗传资源。
结果：在本研究中，我们测序了,分析,并比较了Euplocastrigosa的完整质体，阿贝尼托溴铵,与相关分类群的基因组。梭状芽孢杆菌的质体的长度，H.Arbainense,和H.longflorum为155,174bp，154,709个基点，和154,496个基点，分别。每个质体由114个基因组成：80个蛋白质编码基因，4核糖体RNA基因，和30个转移RNA基因。长重复分析表明，反向，回文,补体和正向重复都在三个质体中发现。简单重复分析显示，纹枯病菌的质体，H.Arbainense,H.longflorum包含158、165和151个微卫星，分别。系统发育分析证实了Boraginales中的两个主要进化枝：进化枝I包括Boraginaceae，而进化枝II包括Heliotropiaceae，菊科,Lennoaceae，和科迪科。在Heliotropiaceae家族中，E.strigosa嵌套在Heliotropium属中。
结论：这项研究扩展了我们对类牙科进化关系的认识，并提供了有用的遗传资源。
