100棉花学报24卷

表1鲁棉研15号的3个亚群体和亲本的纤维品质性状统计分析

Table1StatisticalanalysisoffibertraitsofthethreesubpopulationsofLumianyan15andtheirparents亚群体

性状环境

Subpopula-TraitEnv

tionA纤维长度1

Fiberlength/mm2纤维强度1

-1

Fiberstrength/渊cN窑tex冤2麦克隆值1

2Fibermicronaire

1纤维伸长率

Fiberelongation/%2整齐度指数1Fiberuniformity/%2

B

纤维长度

Fiberlength/mm纤维强度

Fiberstrength/渊cN窑tex-1冤麦克隆值

Fibermicronaire纤维伸长率

Fiberelongation/%整齐度指数

Fiberuniformity/%纤维长度

Fiberlength/mm纤维强度

Fiberstrength/渊cN窑tex-1冤麦克隆值

Fibermicronaire纤维伸长率

Fiberelongation/%整齐度指数

Fiberuniformity/%

13131313132323232323

Range26.13～31.3625.59～31.3026.95～33.4528.05～35.103.63～5.183.32～5.206.35～6.956.40～6.9580.65～86.9081.70～87.25

F2:3群体F2:3populationsMeanStdevCV/%28.720.832.8929.270.913.1230.421.153.7831.881.274.004.440.306.824.310.307.036.640.101.546.700.101.4485.141.021.1985.051.101.2928.8127.4930.8130.754.465.536.685.1285.1785.0829.4227.7031.7430.674.255.496.705.1585.1385.25

0.840.841.091.620.300.220.100.520.930.860.920.861.201.590.300.210.090.480.970.76

2.903.043.545.276.673.941.4910.121.101.023.123.113.785.177.053.861.329.281.140.90

亲本Parents

Skew-0.27-0.42-0.19-0.24-0.15-0.06-0.17-0.24-0.77-0.49

61329.3130.2931.4033.504.124.156.606.7083.7086.8029.3128.1531.4033.084.125.426.604.4083.7084.6030.2928.1533.5033.084.155.426.704.4086.8084.60

R5527.9728.6029.0031.104.664.436.656.8586.6585.3027.9726.2129.0026.854.665.456.655.2086.6584.7528.6026.2131.1026.854.435.456.855.2085.3084.75

26.85～31.5425.36～29.7027.95～34.4026.07～35.973.75～5.644.93～6.136.45～6.953.80～6.7082.50～87.2082.55～87.2526.66～32.1325.42～30.1028.05～35.1526.12～35.623.24～5.284.77～5.956.50～6.904.05～6.7081.75～87.5083.3～87.15

0.42-0.010.130.210.37-0.190.150.20-0.290.01-0.090.06-0.010.290.04-0.33-0.200.39-0.380.17

C

注院环境1袁2袁3分别表示河南安阳尧河北曲周尧湖北鄂州袁其中安阳和曲周属于黄河流域袁鄂州属于长江流域遥Note:Env1,2,3denoteAnyanginHenanprovince,QuzhouinHebeiprovince,EzhouinHubeiprovince,respectively.AnyangandQuzhoubelongtoYellowRiverValley,EzhouislocatedinYangtzeRiverValley.

QTL只能在同一个亚群体的一个环境中检测到遥其中有3个QTL的增效基因来自613袁其余的9个QTL的增效基因均来自R55遥

共检测到6个伸长率的QTL袁解

释表型变异的1.74%~13.30%遥其中qFE-16-1能够在两个亚群体的2个环境中同时检测到袁位于相同的区间内袁解释的表型变异分别为13.30%尧12.82%袁是能够稳定遗传的QTL遥其余的QTL只能在同一个亚群体的一个环境中检测到遥除了qFE-16-1的增效基因来自613外袁其余5个QTL的增效基因均来自R55

遥

共检测到5个整齐度指数的

QTL袁解释表型变异的3.06%~7.57%遥这些QTL

只能在同一个亚群体的一个环境中检测到袁QTL的增效基因2个来自613袁3个来自R55遥

综合三个亚群体5个纤维品质性状QTL分析结果发现袁有5个QTL能在两个或两个以上的环境中同时检测到袁且贡献率较高袁能够稳定遗传遥其中与纤维长度相关的3个袁与麦克隆值相关的1个袁与伸长率相关的1个袁增效基因均来自613遥这也说明了父本材料613的纤维品质性状优良袁生产上有进一步利用的价值

遥

讨论

亲本选配与遗传图谱构建

由于陆地棉的遗传基础狭窄袁DNA标记多态