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Position: Home > Articles > Morphological Difference and DNA Diversity Between Flower-colour Sport and Original Cultivar of Chrysanthemum with Small Flowers Journal of Northeast Agricultural University(English Edition) 2011,18 (4)

Morphological Difference and DNA Diversity Between Flower-colour Sport and Original Cultivar of Chrysanthemum with Small Flowers

作  者:
Helan Qin;Jiuying Fen
单  位:
Beijing Institute of Gardening and Landscape, Beijing 100102, China;College of Beijing Forestry Surveying and Designing, Beijing 100029, Chin
关键词:
flower;colour;cultivar;sport;chrysanthemum;morphological differenc
摘  要:
A total of 58 morphological characteristics were measured on flower-colour sport and original cultivar according to Disticness, Uniformity, Stability (DUS) Test for New Plant Cultivar of Chrysanthemum published by Ministry of Agriculture of China. The results showed that five characteristics such as the surface colour, the back color of ray floret among them were siginificantly different, their MS (morphological similarity) was 91.4%, and MD (morphological difference) was 8.62%. DNA polymorphic analysis by AFLP showed that GS (genetic similarity) was 98.6%, and GD (genetic polymorphic diversity) was 2.81%. Five distinct bands which may include the flower-colour sport genes or be the molecular marker linkaged flower-color characteristics were amplified.

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