关键词: 复萌, 萌发, 钠盐胁迫, 禾本科, 藜科, 一年生植物

Abstract: Thirty two microsatellite markers were utilized to analyze the genetic diversity and germplasm characteristics of five Fujian native duck breeds (Jind ing duck, Liancheng white duck, Putian black duck, Shanma duck, and Muscovy duck) and two reference duck breeds (Beijing duck and Khaki Campbell duck). By using the marke rs, 371 alleles in test duck breeds were detected. The average allelic number pe r locus was 11719, average value of PIC was 0.522, average number of effec tive alleles was from 5141 to 6961, and average heterozygosity was from 05 12 to 0700. Based on Nei’s standard distance (DS) and DA genetic distance, a dendrogram was constructed by using the unweighted pair group method with arithmetic mean ( UPGMA). Jinding duck, Putian black duck, Liancheng white duck, Shanma duck, and Khaki Campbell duck were clustered into a group, and Beijing duck and Muscovy duck wer e clustered into another two groups, respectively. The dendrogram of DA and DS g enetic distances were accorded with the real relations among the seven duck bree ds.

Key words: Gramineae, Chenopodiaceae, sodium-salt stress, germination, annual plant, re-germination.