Journal
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
Volume 55, Issue -, Pages 241-248Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bse.2014.03.019
Keywords
C-value; Genome size; Ecological variable; Flow cytometry; Loganin; Cornus officinalis
Funding
- Natural Science Foundation of China [31100241]
- Fundamental Research Funds for the Central Universities [GK 201402025]
- Shaanxi science and technology plan projects [2011K16-02-05]
- Xi'an key scientific and technological project [NC1116 (1)]
- Innovation funds of graduate programs, SNNU [2013CXS017]
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Cornus officinalis is a small deciduous tree with significant medicinal values. To explore the ecological effects on phenotypic, cytological and biochemical diversity of medicinal plants, we estimated the loganin content, C-values and fruit and seed phenotypic traits of 80 C. officinalis germplasms collected from across three genuine producing areas of China and Madison, USA. Our results showed that most fruit and seed phenotypic traits of C. officinalis germplasms from Madison, USA were significantly larger than those from China, but the loganin contents and 2C values of germplasms from China (0.9% and 5.92 pg) were significantly higher than those from Madison (0.6% and 5.29 pg) (P < 0.01). These data highlight the fact that there was a tight association between temperature, precipitation and loganin content in C officinalis. Based on the above results, we found that C. officinalis had a tendency to decline in genome size (GS) and loganin content during the long period of adaptation and evolution with new ecological variables. We are able to presume that the ecological variable is the key factor in determining, phenotypic diversity, GS and active ingredient of medicinal plants. (C) 2014 Elsevier Ltd. All rights reserved.
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