水稻亚种间单片段代换系的建立.pdf

(Chinese J Rice Sci), 2003, 17(3):201 ～204 　 20 1 刘冠明　李文涛　曾瑞珍　张桂权＊ ＊ ( , 510642;, E-mail:gqzhang@) Development of Single Segment Substitution Lines (SSSLs)of Subspecies in Rice ＊ L U Guan-ming, L Wen-tao, ZENG Rui-zhen, ZHANG Gui-quan ＊ (Plant Molecular Breeding Research Center, South China Agricultural University, Guangzhou 51064 , China; Corresponding author, E-mail:gqzhang @) Abstract:T w enty-nine single segment substitution lines (SSSLs)w ith the recipient, Taichung 65 and the donor, Dee-geo-w oo- gen or Zhaiyeqing had been developed through simple sequence repeat (SSR)marker-aided selection.The total length of substituted segments in 29 SSSLs w as 643.65 cM w ith an average of 22.19 cM;the total covered leng th w as 427.55 cM on nine chromosomes w ith the coverage of 23.47%of rice genome. Key words:rice;single segment substitution lines;simple sequence repeats;molecular marker-aided selection 　:, 29 65 、, 9 , 643.65 cM, 22.19 cM, 427.55 cM, 23.47%。 :;;; :Q 943;S511.035.3 :A :1001-7216(2003)03-020 1-04 　　, 。 (Quantit ative trait loci, ,29 Q T L) , (Single 。, segment substitution lines, SSS Ls)。 [1, 2] Q T L 。, 1　 , QT L 。, 1.1　 (Substitution lines, SLs ) 65 ,65 6 [3, 4] Q T L 。 。6 (Chromosome segment substitution lines, ,12 CSS Ls)(ntrogression lines, Ls), 158 [ 11] (Near-isogenic lines, 。6 1, , N Ls),, T SL6 T SL25 65 , 10 ,QT L , T SL 6 Oka [5] [12] [13] , QT L 。 , T SL25 。 QT L 1.2　 ,QT L[6 ～8] 。 65 6 , 6 :1