LI Jing
South China Botanical Garden, Chinese Academy of Sciences, ChinaXIA Nian-he
South China Botanical Garden, Chinese Academy of Sciences, ChinaThe genetic diversity of 215 individuals of Miscanthus floridulus from 13 natural populations distributed in Guangdong Province was investigated by using intersimple sequence repeat (ISSR) techniques. A total of 81 unambiguous and repetitious bands were scored by 9 primers. The results showed that the genetic diversity of M. floridulus was high, at species level, percentage of polymorphic loci (PPB) was 93.83%, Nei's gene diversity (He) for 0.3969, and Shannon's information index (Hsp) for 0.5724; while at population level, PPB=81.91%, He=0.3015 and Shannon's information index (Hpop)=0.4460. The coefficient of genetic differentiation among populations (Gst) was 0.2379, and gene flow among populations (Nm) was 1.6018. The AMOVA analysis showed that 79.56% of the total genetic variation within populations and the rest (20.44%) partitioned among populations. No significant correlation was found between geographical and genetic distance (r=-0.2811, P=0.9590).
李婧,夏念和.广东省五节芒遗传多样性的ISSR分析[J].热带亚热带植物学报,2011,19(6):506~512
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