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《Hereditas(Beijing)》 2005-03
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Genetic Diversity Analysis of Alfalfa Floral Properties

JIANG Hua~(1,2), BI Yu-Fen~2, HE Cheng-Gang~3, ZHOU He~1(1. Institute of Grassland Science, China Agricultural University, Beijing 100094, China;2. Animal Science and Technology College, Yunnan Agricultural University, Kunming 650201, China;3.Tobacco Science College, Yunnan Agricultural University, Kunming 650201, China)  
Genetic mutations of alfalfa floral properties,including calyx diameter, coronary length, flower number per raceme, raceme number per twig, flower number per unit area, percentage of flicked flowers, excreted nectar (amount), sugar concentration in nectar and contents of sucrose, fructose and glucose in nectar,have been studied with both morphological markers and RAPD markers. The results showed that the genetic variation of floral properties is from 0.80% to 92.30%, of which the content of glucose was the most significant one with the variation from 0.01 to 0.53 μmol/L (P0.05), and the sugar concentration was the most insignificant one (P0.05). RAPD analysis showed that variances of genetic distances was from 0.21 to 0.35, among which the most significant one was WL323 and Shanbei, and the most insignificant one was Derby and Prime. Thus it can be seen that genetic diversity of floral properties among these varieties of alfalfas is abundant.
【Fund】: 国家自然基金项目资助(编号:30260075)~~
【CateGory Index】: S541.9
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