Investigation on Biochemical and Molecular Analysis of Echinacea Genotypes
Esra Maltas,
Aslı Dageri,
Hasibe Cingilli Vural,
Salih Yildiz
Issue:
Volume 3, Issue 1, January 2015
Pages:
1-7
Received:
21 August 2014
Accepted:
9 September 2014
Published:
15 December 2014
Abstract: Genotype identification of medicinal plants remains important for botanical drug industry. Limitations of chemical and morphological approaches for authentication have generated need for newer methods in quality control of botanicals. In this study, the difference between Echinacea purpurea and Echinacea pallida were studied by molecular markers. First of all, genomic DNA from Echinacea genotypes was extracted with EZ1 automatic nucleic acid isolation system and was amplified with OPA primer series. The study showed some relationship between six primers (OPA1, OPA2, OPA3, OPA4, OPA6 and OPA15) with productive performance of Echinacea purpurea and Echinacea pallida. However, secondary metabolites and fatty acids of Echinacea purpurea extract were identified by high performance liquid and gas chromatography, respectively. In addition, antioxidant activity associated with chemical structure of the extract was determined by 1,1 1-diphenyl-2-picrylhydrazyl radical scavenging activity.
Abstract: Genotype identification of medicinal plants remains important for botanical drug industry. Limitations of chemical and morphological approaches for authentication have generated need for newer methods in quality control of botanicals. In this study, the difference between Echinacea purpurea and Echinacea pallida were studied by molecular markers. F...
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Clonal Structure of Two Wild Lotus (Nelumbo nucifera Gaertn.) Populations Inferred from Amplified Fragment Length Polymorphism Fingerprints
Kazunari Nomura,
Tamae Harada,
Nozomi Saotome,
Minami Kubota,
Masato Katori
Issue:
Volume 3, Issue 1, January 2015
Pages:
8-14
Received:
26 February 2015
Accepted:
13 March 2015
Published:
18 March 2015
Abstract: The lotus Nelumbo nucifera often forms dense populations at the margins of lakes and ponds. Many aquatic plant species such as N. nucifera are characterized by the ability to reproduce both sexually and asexually, which can affect the genetic diversity of populations growing in different types of environments. We compared the clonal diversities of two natural lotus populations in Japan. Diversity was quantified by DNA fingerprinting of amplified fragment length polymorphisms (AFLPs) in leaves sampled across each population. The DNA fingerprints revealed different amounts of diversity in each population. In 162 samples from Lake Kasumigaura, where lotus has grown continuously for many years, 35 AFLP patterns were detected. One particular clone was distributed widely, suggesting that growth of seed-derived plants was inhibited because of the superior competitive ability of rhizomes, resulting in low genetic diversity within the population. In 214 samples from Uchi-numa Pond in Miyagi Prefecture, where the lotus population was totally destroyed by heavy rains in 1998 and is now recovering, 213 different AFLP profiles were detected. The spatial distance between samples from Uchi-numa Pond was correlated with the genetic distance. These results suggest that, in lotus, sexual reproduction is favored when rapidly varying water level damages the population, because small seedlings are better able to survive in a low-density population. In contrast, vegetative reproduction is favored when environmental conditions are stable.
Abstract: The lotus Nelumbo nucifera often forms dense populations at the margins of lakes and ponds. Many aquatic plant species such as N. nucifera are characterized by the ability to reproduce both sexually and asexually, which can affect the genetic diversity of populations growing in different types of environments. We compared the clonal diversities of ...
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