玉米雄穗分枝数主效QTL定位及qTBN5近等基因系构建

代资举,王新涛,杨青,王艳,张莹莹,席章营,李保全

Major Quantitative Trait Loci Mapping for Tassel Branch Number and Construction of qTBN5 Near-isogenic Lines in Maize (Zea mays L.)

Zi-Ju DAI,Xin-Tao WANG,Qing YANG,Yan WANG,Ying-Ying ZHANG,Zhang-Ying XI,Bao-Quan LI

表2 玉米雄穗分枝数主效QTL及其遗传效应

Table 2 Putative major QTLs of tassel branch number and their genetic effects

QTL 染色体 Chromosome 物理区间 Position (Mb) 标记区间 Marker interval LOD 加性效应 Additive effect 贡献率 R2 (%) qTBN3 3 146.7-175.5 umc1954-bnlg1798 5.06 1.40 13.67 qTBN4 4 169.2-186.7 bnlg2291-umc2041 3.15 -1.01 5.81 qTBN5 5 170.1-200.2 umc2111-bnlg278 9.58 1.88 19.92 qTBN7 7 29.4-83.2 bnlg2233-bnlg1380 4.65 -0.82 16.53 qTBN10 10 127.3-145.5 umc2003-phi323152 6.11 -1.73 9.06