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作物杂志,2023, 第5期: 1–9 doi: 10.16035/j.issn.1001-7283.2023.05.001

• 遗传育种·种质资源·生物技术 •    下一篇

利用海岛棉染色体片段导入系定位纤维品质性状QTL

李兴河(), 王海涛, 刘存敬, 唐丽媛, 张素君, 蔡肖, 张香云, 张建宏()   

  1. 河北省农林科学院棉花研究所/农业农村部黄淮海半干旱区棉花生物学与遗传育种重点实验室/国家棉花改良中心河北分中心，050051，河北石家庄
  • 收稿日期:2022-04-18 修回日期:2023-04-11 出版日期:2023-10-15 发布日期:2023-10-16
  • 通讯作者: 张建宏，主要从事棉花分子育种研究，E-mail：nkyzjh@qq.com
  • 作者简介:李兴河，主要从事棉花分子育种研究，E-mail：xingheli111@126.com
  • 基金资助:
    河北省农林科学院基本科研业务费项目(2023070106);河北省农林科学院科技创新专项(2022KJCXZX-MHS-1)

QTL Mapping for Fiber Quality Traits Using Gossypium barbadense Chromosome Segment Introgression Lines

Li Xinghe(), Wang Haitao, Liu Cunjing, Tang Liyuan, Zhang Sujun, Cai Xiao, Zhang Xiangyun, Zhang Jianhong()   

  1. Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area, Ministry of Agriculture and Rural Affairs/Hebei Branch of National Cotton Improvement Center, Shijiazhuang 050051, Hebei, China
  • Received:2022-04-18 Revised:2023-04-11 Online:2023-10-15 Published:2023-10-16

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摘要：

优质棉育种是当前棉花育种的工作重点，海岛棉染色体片段导入系是定位纤维品质性状QTL、定向改良棉花纤维品质的重要材料。以构建的一套以陆地棉冀棉262为背景的海岛棉海7124染色体片段导入系为材料，对上半部平均长度、断裂比强度、马克隆值、整齐度指数和伸长率5个纤维品质性状进行相关性分析及QTL定位。结果表明，上半部平均长度与断裂比强度、整齐度指数，断裂比强度与整齐度指数均呈极显著正相关，断裂比强度与伸长率呈极显著负相关，可能存在QTL的重叠或连锁。利用459对全部锚定在26条染色体上的SSR标记进行QTL定位分析，鉴定得到155个与纤维品质性状相关的QTL，解释表型变异率在6.57%~38.72%，分别位于At亚组的13条染色体和Dt亚组的7条染色体上，每条染色体上平均检测得到7.75个QTL，其中D5染色体上QTL最多，达30个，与上半部平均长度、马克隆值、伸长率相关的各7个，与整齐度指数相关的6个，与断裂比强度相关的3个;在A9染色体上仅检测到1个与伸长率相关的QTL。本研究鉴定得到的QTL位点与已报道的纤维品质位点部分重合或一致，与之相连锁的分子标记将在优质棉品种选育工作中发挥积极作用。

关键词: 染色体片段, 导入系, QTL定位, 纤维品质, 优质棉

Abstract:

Breeding of superior fiber quality cotton is the focus of current cotton breeding. Gossypium barbadense chromosome segment introgression lines (CSILs) are important materials for QTL mapping of fiber quality traits and directional improvement of fiber quality in cotton. In present study, a Hai 7124 introgression lines with Jimian 262 as background were developed, and the correlation analysis and QTLs mapping of five fiber quality traits were performed by CSIL population. The results showed that the significantly positive correlations among the average fiber length of the upper half (FL), the fiber strength (FS) and uniformity index (FU) were observed, and extremely positive correlation between FS and FU. While, a significant negative correlation between FS and FE was detected. It indicated that QTL overlap or linkage between fiber traits might exist. A total of 459 pairs of SSR markers anchored on all 26 chromosomes were used for QTL mapping analysis. Totally, 155 QTLs for five fiber quality traits were identified with explained the phenotypic variation rate of each QTL ranged from 6.57% to 38.72%. These QTLs were located on 13 chromosomes of the At subgroup and seven chromosomes of the Dt subgroup. An average of 7.75 QTLs were detected on each chromosome, among which there were 30 QTLs on Chr.D5, seven QTLs related to FL, MIC and FE, six QTLs related to FU, and three QTLs related to FS. Only one QTL related to FE was detected on Chr.A9. The QTLs identified in this study were partially overlapped or consistent with the reported fiber quality loci, and the linked molecular markers will play an active role in the breeding of high quality cotton varieties.

Key words: Chromosome segment, Introgression lines, QTL mapping, Fiber quality, High-quality cotton

表1

亲本和BC4F2:3的纤维品质性状（小安舍，2018年）

性状
Trait		 冀棉262
Jimian 262		 海7124
Hai 7124		 染色体片段导入系Chromosome segment introgression lines
平均值±标准差Mean±SD 幅度Range 偏度Skewness 峰度Kurtosis
上半部平均长度Fiber length (mm) 28.87 33.70 29.48±1.40 24.96~34.44 0.14 -0.07
断裂比强度Fiber strength (cN/tex) 27.30 38.90 27.54±2.41 21.10~35.35 0.33 -0.59
马克隆值MIC 5.12 4.03 4.88±0.49 3.42~6.49 0.03 -0.71
整齐度指数Fiber uniformity (%) 84.80 87.10 84.59±1.29 80.70~89.80 0.01 -0.41
伸长率Fiber elongation (%) 8.30 11.60 8.64±0.73 6.80~12.70 0.19 -0.56

图1

纤维品质性状的频率分布图 M：平均值，SD：标准偏差

表2

BC4F2:3群体的纤维品质性状的Pearson相关系数

性状
Trait		 上半部
平均长度
Fiber
length		 断裂比
强度
Fiber
strength		 马克
隆值
MIC		 整齐度
指数
Fiber
uniformity
断裂比强度Fiber strength 0.622**
马克隆值MIC -0.141 0.100
整齐度指数Fiber uniformity 0.652** 0.630** 0.277*
伸长率Fiber elongation -0.254* -0.298** -0.184 -0.266*

表3

QTL簇分布

序号
Code		 标记区间
Adjacent marker		 关联性状
Related trait		 位置区间
Approximate
position (cM)		 QTL数量
Number
of QTL		 QTL 位置
Position
(cM)		 解释表型变异率
Explain the phenotypic
variation rate (%)		 加性效应
Additive
effect
A1-cluster-1 NAU2437-HAU3193 FL+FU+MIC+FE 13.3~22.8 4 qFE-A1-1 17.31 24.18 4.71
qFL-A1-1 17.31 26.76 15.31
qFU-A1-1 17.31 27.48 43.07
qMIC-A1-1 17.31 25.13 2.89
A1-cluster-2 HAU3193-NAU3533 FL+FU+MIC+FE 22.8~63.9 4 qFU-A1-2 37.81 27.48 43.07
qFL-A1-2 38.81 26.76 15.31
qFE-A1-2 41.81 24.18 4.71
qMIC-A1-2 41.81 25.13 2.89
A2-cluster-1 NAU5499-CGR5688 FL 19.0~44.7 1 qFL-A2-1 26.01 26.76 15.31
A2-cluster-2 BNL2651-HAU0306 FL+FU+FS 54.2~67.0 3 qFL-A2-2 57.21 26.76 15.31
qFU-A2-1 57.21 27.48 43.07
qFS-A2-1 57.21 25.20 14.33
A3-cluster NAU3016-NAU3083 FU+FS+MIC+FE 105.9~142.7 4 qFU-A3-1 128.91 27.48 43.07
qFS-A3-1 128.91 25.20 14.33
qMIC-A3-1 128.91 25.13 2.89
qFE-A3-1 128.91 24.18 4.71
A4-cluster NAU1151-NAU2235 FU+FS 0.0~14.1 2 qFU-A4-1 4.01 30.00 42.95
qFS-A4-1 4.01 29.86 14.31
A5-cluster-1 NAU3382-NAU1127 FL 48.1~62.2 1 qFL-A5-1 50.71 26.76 15.31
A5-cluster-2 BNL3992-NAU3014 FL+FS+FE 108.2~116.6 3 qFL-A5-2 111.81 6.57 3.86
qFS-A5-1 111.81 6.66 3.74
qFE-A5-1 111.81 6.66 1.24
A5-cluster-3 CIR062-HAU1034 FL+FU+FS 120.2~133.0 3 qFL-A5-3 126.81 30.17 15.34
qFU-A5-1 126.81 30.68 43.03
qFS-A5-2 126.81 29.57 14.49
A6-cluster BNL2569-CIR203 FL+FU+FS+MIC+FE 110.0~118.2 8 qFL-A6-1 111.01 31.09 15.34
qFL-A6-2 116.51 7.30 3.54
qFU-A6-1 111.01 31.49 43.00
qFS-A6-1 111.01 30.19 14.41
qFS-A6-2 117.51 11.19 5.00
qMIC-A3-1 111.01 29.63 2.90
qFE-A6-1 111.01 28.79 4.76
qFE-A6-2 117.51 8.67 1.36
A7-cluster NAU2564-NAU4082 FL+FU+FS+MIC+FE 7.7~32.2 5 qFL-A7-1 27.71 37.87 15.32
qFU-A7-1 27.71 38.72 43.00
qFS-A7-1 27.71 37.28 14.43
qMIC-A7-1 27.71 35.96 2.89
qFE-A7-1 27.71 35.27 4.76
A8-cluster-1 CGR5759-CIR343 FL+FU+MIC+FE 36.2~44.6 4 qFL-A8-1 38.71 26.76 15.31
qFU-A8-1 38.71 27.48 43.07
qMIC-A8-1 38.71 25.13 2.89
qFE-A8-1 38.71 24.18 4.71
A8-cluster-2 BNL3474-CGR5363 FL+FU+MIC+FE 52.2~70.4 7 qFU-A8-2 58.91 27.48 43.07
qFE-A8-2 58.91 24.18 4.71
qFL-A8-2 64.31 26.76 -15.31
qFU-A8-3 64.31 27.48 -43.07
qFS-A8-1 64.31 25.20 -14.33
qMIC-A8-2 64.31 25.13 -2.89
qFE-A8-3 65.91 24.18 -4.71
A9-cluster HAU3241-HAU3365 FE 85.9~93.9 1 qFE-A9-1 86.91 27.53 4.77
A10-cluster NAU3574-STV031 FL+FU+FS+MIC+FE 72.5~113.7 10 qFL-A10-1 74.51 26.76 15.31
qFU-A10-1 74.51 27.48 43.07
qFS-A10-1 74.51 25.20 14.33
qMIC-A10-1 74.51 25.13 2.89
qFE-A10-1 74.51 24.18 4.71
qFL-A10-2 87.91 26.76 15.31
qFU-A10-2 87.91 27.48 43.07
qFS-A10-2 87.91 25.20 14.33
qMIC-A10-2 87.91 25.13 2.89
qFE-A10-2 87.91 24.18 4.71
A11-cluster-1 JESPR201-DPL0103 FL+FU+FS+MIC 81.5~86.7 4 qFL-A11-1 83.51 26.76 15.31
qFU-A11-1 83.51 27.48 43.07
qFS-A11-1 83.51 25.20 14.33
qMIC-A11-1 83.51 25.13 2.89
A11-cluster-2 BNL1408-JESPR296 FL+FU+MIC 92.3~100.9 3 qMIC-A11-2 96.31 25.13 2.89
qFL-A11-2 98.41 26.76 15.31
qFU-A11-2 98.41 27.48 43.07
A11-cluster-3 NAU2599-NAU5505 FL+FU+FS+MIC 105.4~116.0 4 qFL-A11-3 113.41 26.76 15.31
qFU-A11-3 113.41 27.48 43.07
qFS-A11-2 113.41 25.20 14.33
qMIC-A11-3 113.41 25.13 2.89
A12-cluster-1 DPL0057-NAU3561 MIC 4.9~18.5 1 qMIC-A12-1 10.91 25.13 2.89
A12-cluster-2 NAU1151-NAU5492 FU+FS+FE 98.9~104.4 3 qFU-A12-1 100.91 27.48 43.07
qFS-A12-1 100.91 25.20 14.33
qFE-A12-1 100.91 24.18 4.71
A12-cluster-3 NAU3713-NAU5204 FU+FS+MIC+FE 109.6~114.8 4 qFU-A12-2 110.61 27.48 43.07
qFS-A12-2 110.61 25.20 14.33
qMIC-A12-2 110.61 25.13 2.89
qFE-A12-2 110.61 24.18 4.71
A13-cluster BNL4029-NAU4104 FL+FU+FS+MIC+FE 59.9~70.9 10 qFL-A13-1 61.91 26.76 15.31
qFL-A13-2 69.21 26.76 15.31
qFU-A13-1 61.91 27.48 43.07
qFU-A13-2 69.21 27.48 43.07
qFS-A13-1 61.91 25.20 14.33
qFS-A13-2 69.21 25.20 14.33
qMIC-A13-1 61.91 25.13 2.89
qMIC-A13-2 69.21 25.13 2.89
qFE-A13-1 61.91 24.18 4.71
qFE-A13-2 69.21 24.18 4.71
D2-cluster CIR288-CGR5030 FU+FS+FE 45.3~49.2 3 qFU-D2-1 48.61 27.48 43.07
qFS-D2-1 48.61 25.20 14.33
qFE-D2-1 48.61 24.18 4.71
D4-cluster NAU2329-BNL4049 FL+FU+FS 74.6~81.4 3 qFL-D4-1 77.31 26.76 15.31
qFU-D4-1 77.31 27.48 43.07
qFS-D4-1 77.31 25.20 14.33
D5-cluster-1 NAU3095-NAU3649 FL+FU+FS+MIC+FE 10.8~19.5 5 qFL-D5-1 15.71 26.76 15.31
qFU-D5-1 15.71 27.48 43.07
qFS-D5-1 15.71 25.20 14.33
qMIC-D5-1 15.71 25.13 2.89
qFE-D5-1 15.71 24.18 4.71
D5-cluster-2 DPL0893-NAU2636 FL+FU+FS+MIC+FE 37.2~58.0 6 qMIC-D5-2 41.31 28.81 2.92
qFL-D5-2 54.21 26.76 15.31
qFU-D5-2 54.21 29.82 43.04
qFS-D5-2 54.21 25.20 14.33
qMIC-D5-3 54.21 28.81 2.92
qFE-D5-2 54.21 28.11 4.79
D5-cluster-3 NAU3652-HAU3498 FL+FU+FS+MIC+FE 62.0~67.5 5 qFL-D5-3 63.71 26.76 15.31
qFU-D5-3 63.71 29.82 43.04
qFS-D5-3 63.71 25.20 14.33
qMIC-D5-4 63.71 28.81 2.92
qFE-D5-3 63.71 28.11 4.79
D5-cluster-4 BNL390-NAU2741 FL+FU+MIC+FE 83.8~94.6 8 qFL-D5-4 87.81 26.76 15.31
qFU-D5-4 87.81 27.48 43.07
qMIC-D5-5 87.81 25.13 2.89
qFE-D5-4 87.81 24.18 4.71
qFL-D5-5 94.01 26.76 15.31
qFU-D5-5 94.01 27.48 43.07
qMIC-D5-6 94.01 25.13 2.89
qFE-D5-5 94.01 24.18 4.71
D5-cluster-5 NAU5005-BNL3811 FL+FU+MIC+FE 99.8~110.1 4 qFL-D5-6 108.81 26.76 15.31
qFU-D5-6 108.81 27.48 43.07
qMIC-D5-7 108.81 25.13 2.89
qFE-D5-6 108.81 24.18 4.71
D5-cluster-6 BNL285-CGR5803 FE 131.4~157.7 1 qFE-D5-7 133.61 24.18 24.18
D5-cluster-7 NAU4884-NAU2233 FL 162.2~169.4 1 qFL-D5-7 166.01 26.76 15.31
D6-cluster-1 Gh513 FL+FS+MIC 0.0~2.4 3 qFL-D6-1 0.01 26.76 15.31
qFS-D6-1 0.01 25.20 14.33
qMIC-D6-1 0.01 25.13 2.89
D6-cluster-2 BNL3594-DPL0282 FS 10.1~35.1 1 qFS-D6-2 14.71 25.20 14.33
D6-cluster-3 BNL2569-HAU2022 FU 105.5~111.1 1 qFU-D6-1 109.71 27.48 43.07
D9-cluster NAU6323-NAU6764 FL+FU+FS+MIC+FE 47.4~93.1 9 qFL-D9-1 58.41 26.76 15.31
qFL-D9-2 86.01 26.76 15.31
qFU-D9-1 58.41 27.48 43.07
qFU-D9-2 87.01 27.48 43.07
qFS-D9-1 58.41 25.20 14.33
qFS-D9-2 86.01 25.20 14.33
qMIC-D9-1 58.41 25.13 2.89
qMIC-D9-2 86.01 25.13 2.89
qFE-D9-1 58.41 24.18 4.71
D11-cluster-1 NAU3748-BNL3171 FL 0.0~42.4 1 qFL-D11-1 37.01 26.76 26.76
D11-cluster-2 NAU6431-HAU2559 FL+FU+FS+MIC+FE 150.7~188.1 5 qFL-D11-2 166.71 26.76 15.31
qFU-D11-1 166.71 27.48 43.07
qFS-D11-1 166.71 25.20 14.33
qMIC-D11-1 166.71 25.13 2.89
qFE-D11-1 166.71 24.18 4.71
D12-cluster NAU2902-NAU3881 FL+FU+FS+MIC+FE 20.0~56.9 10 qFL-D12-1 29.21 26.76 15.31
qFL-D12-2 39.91 26.76 15.31
qFU-D12-1 29.21 27.48 43.07
qFU-D12-2 39.91 27.48 43.07
qFS-D12-1 29.21 25.20 14.33
qFS-D12-2 39.91 25.20 14.33
qMIC-D12-1 29.21 25.13 2.89
qMIC-D12-2 39.91 25.13 2.89
qFE-D12-1 29.21 24.18 4.71
qFE-D12-2 39.91 24.18 4.71
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