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Acta Agronomica Sinica ›› 2018, Vol. 44 ›› Issue (6): 931-937.doi: 10.3724/SP.J.1006.2018.00931

• RESEARCH NOTES • Previous Articles     Next Articles

Genetic Analysis of Haplotype-blocks from Wheat Founder Parent Linfen 5064

Ling QIAO1,Cheng LIU2,Xing-Wei ZHENG1,Jia-Jia ZHAO1,Bao-Hua SHANG1,Xiao-Fei MA1,Lin-Yi QIAO1,Hong-Mei GE3,Hu-Tai JI1,Jian-Jun LIU2,Jian-Cheng ZHANG1,*(),Jun ZHENG1,*()   

  1. 1 Wheat Research Institute, Shanxi Academy of Agricultural Sciences, Linfen 041000, Shanxi, China
    2 Crop Research Institute, Shandong Academy of Agricultural Sciences / Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture, Jinan 250100, Shandong, China
    3 Qingdao Academy of Agricultural Sciences, Qingdao 266100, Shandong, China
  • Received:2017-11-13 Accepted:2018-03-25 Online:2018-06-12 Published:2018-04-18
  • Contact: Jian-Cheng ZHANG,Jun ZHENG E-mail:zhangjc@126.com;sxnkyzj@126.com
  • Supported by:
    This study was supported by the National Key Research and Development Program of China(2017YFD0100600);the Key Scientific and Technological Innovation Platform for Main Crop Germplasm Innovation and Molecular Breeding(201605D151002);the Breeding Program of Shanxi Academy of Agricultural Sciences(17yzgc010);the Nation Key Research and Development Program of Shanxi Province(201703D211007)

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Abstract:

The objective of this study was to provide essential basis for further utilization of Linfen 5064, an elite founder parent, through dissecting haplotype-blocks of Linfen 5064 transmitted to its progenies. A total of 895 alleles were detected on 395 SSR loci in Linfen 5064 and the 21 derived varieties (lines), with 1-8 alleles per locus and an average of 2.27. The average polymorphism information content (PIC) was 0.25. On 146 loci, the alleles were identical between all derived varieties (lines) and the parent, and genetic contributions of the parent were higher than 80% on 30 loci. Generally, the genetic contributions of Linfen 5064 to the first- and second-derived generations were 65.30% and 64.24%, and the contribution ratio did not decrease significantly along with the increase of generations. Sixteen haplotype-blocks were inherited completely from the parent to all derived varieties (lines) and the haplotype-blocks with contribution ratios higher than 80% were distributed on all the 21 chromosomes. In combination with the results of association analysis, almost every haplotype-block was associated with QTLs controlling important agronomic traits, indicating these chromosomal segments were strongly selected in breeding programs.

Key words: wheat, founder parent, Linfen 5064, genetic contribution, haplotype-block

Supplementary Fig. 1

Derivatives of Linfen 5064 and their pedigrees"

Supplementary Table.1

Relative information of Linfen 5064 and its derived varieties (lines)"

品种 世代 系谱 审定年份 审定类别
临汾5064 亲本 临汾5694/沙瑞克//临汾5054 1988 -
济麦19 子一代 鲁麦13/临汾 2001 山东省
济南17 子一代 临汾5064/鲁麦13 1999 山东省
临优145 子一代 临汾5064/陕优225 2003 山西省
临汾8050 子一代 临汾5064/陕7622 2007 山西省
临优2018 子一代 农科2号/临汾5064 2005 山西省
临汾138 子一代 临汾5064/烟农15 2003 山西省
农大152 子一代 陕优225/临汾5064 - 北京市
临汾139 子一代 太原136/临汾5064 2006 陕西省
晋麦83 子二代 临汾5064//烟农15/临辐8001 2007 山西省
中麦155 子二代 济麦19/鲁麦21 2012 河北省
婴泊700 子二代 太谷核不育/济麦19 2012 河北省
临优2069 子二代 临优145/5445 2005 山西省
晋麦94 子二代 临优2018航天育种 2014 山西省
鲁原502 子二代 9940168/济麦19 2011 国家黄淮冬麦区
晋麦82 子二代 临汾138/陕88316 2007 山西省
荷麦19 子二代 烟农19/临汾139 - -
新麦26 子二代 新麦18/济南17 2010 国家黄淮冬麦区
中洛08-2 子二代 偃展1号/济南17 2011 河南省
山农14 子二代 G91605/济南17 2006 山东省
山农15 子二代 济南17/济核916 2006 山东省
郑麦0943 子二代 郑97199/济麦19 2014 河南省

Table 1

HMW-GS compositions of Linfen 5064 and its derived varieties (lines)"

类别
Type		 品种
Variety		 亚基组成
HMW-GS
亲本 Parent 临汾5064 Linfen 5064 1, 7+8, 2+12
衍生后代
Derived varieties
or lines		 济麦19 Jimai 19 1, 7+8, 2+12
济南17 Jinan 17 1, 7+8, 5+12
临优145 Linyou 145 1, 7+8, 2+12
临汾8050 Linfen 8050 1, 7+8, 2+12
临优2018 Linyou 2018 1, 7+8, 5+10
临汾138 Linfen 138 1, 7+9, 2+12
农大152 Nongda 152 1, 7+8, 2+12
临汾139 Linfen 139 null, 7+8, 2+12
晋麦83 Jinmai 83 1, 14+15, 2+12
中麦155 Zhongmai 155 null, 7+8, 5+12
婴泊700 Yingbo 700 1, 7+9, 5+10
临优2069 Linyou 2069 1, 7+8, 5+12
晋麦94 Jinmai 94 1, 7+8, 5+10
鲁原502 Luyuan 502 1, 7+8, 5+12
晋麦82 Jinmai 82 1, 7+9, 2+12
荷麦19 Hemai 19 null, 17+18, 5+10
新麦26 Xinmai 26 1, 7+9, 5+10
中洛08-2 Zhongluo 08-2 1, 14+15, 5+12
山农14 Shannong 14 1, 7+8, 5+12
山农15 Shannong 15 1, 7+8, 5+12
郑麦0943 Zhengmai 0943 1, 7+9, 5+12

Fig. 1

Cluster analysis of Linfen 5064 and its derivatives (NJ method)"

Table 2

Genomic contribution of the founder parent Linfen 5064 to their derivatives (%)"

基因组
Genome		 标记/衍生世代
Marker/derived generation		 染色体 Chromosome 平均
Average
1 2 3 4 5 6 7
A 标记数量 No. of markers 16 25 21 18 21 14 17 132
子一代 First generation 68.75 41.50 63.10 61.81 70.83 65.18 76.92 64.10
子二代 Second generation 71.63 42.76 65.00 58.12 67.03 69.23 73.76 63.93
B 标记数量 No. of markers 16 19 17 12 23 9 11 107
子一代 First generation 49.22 69.74 63.24 68.75 67.93 75.00 73.86 66.82
子二代 Second generation 47.11 68.82 62.44 67.95 65.55 79.49 69.93 65.89
D 标记数量 No. of markers 22 21 16 16 38 18 25 156
子一代 First generation 57.95 60.11 73.44 67.97 65.46 68.06 62.50 65.07
子二代 Second generation 58.04 60.80 75.48 61.06 65.09 61.96 56.92 62.89

Supplementary Fig.2

Haplotype-blocks shared between core parent lines and Linfen5064 in 21 linkage groups The identical haplotype-blocks between Linfen 5064 and its derivatives are shown in red. The identical haplotype-blocks between Linfen 5064 and its first derivatives are shown in green. Black line indicates the unique alleles in Linfen 5064. The vertical line on the right of chromosome represents the haplotype-blocks with the genetic contribution ratios higher than 80%"

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