Crops ›› 2018, Vol. 34 ›› Issue (1): 25-34.doi: 10.16035/j.issn.1001-7283.2018.01.004

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Analysis and Comprehensive Evalution of Phenotypic Genetic Diversity of Ningxia and Xinjiang Rice Germplasm

Zhao Lu,Yang Zhiwei,Bu Liqun,Tian Ling,Su Mei,Tian Lei,Zhang Yinxia,Yang Shuqin,Li Peifu   

  1. College of Agronomy, Ningxia University, Yinchuan 750021, Ningxia, China
  • Received:2017-10-20 Revised:2017-12-19 Online:2018-02-20 Published:2018-08-24

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Abstract:

In order to broaden the genetic basic of rice germplasm resources in Ningxia and Xinjiang, the genetic diversity and comprehensive assessment of 193 Ningxia and Xinjiang rice germplasm resources were analyzed based on phenotypic traits. The results indicated that most of these rice germplasm resources presented coated stem node, not premature leaf, smal sword leaf angle, strong lodging resistance, panicle shape bending and difficult seed-shattering. The genetic variation of 14 quantitative traits all reached a very significant level, and the variation coefficient of single plant yield was the biggest, 23.8%. The variation range of genetic diversity index was from 1.86 to 2.08 with average 2.02. By cluster analysis, 193 rice germplasm resources were divided into 8 groups. Most of the germplasm resources were in the first group, accounting for 65.3%. The second group was accounted for 9.3% and the third group was 20.7%. The rest of these groups contained 9 kinds of rice germplasm which was accounted for 4.7%. Through principal component analysis, 14 quantitative traits were converted into 7 principal components, and the cumulative contribution rate was reached 90.67%. An objective comprehensive evaluation value (D-value) of rice agronomic traits was obtained using membership function with index weight method. The five highest of the D value of germplasm resources were all from Ningxia, which showed better comprehensive traits, with the most outstanding performance in Ning218. Nevertheless, Xinyinqu2015-13, which a germplasm resource from Xinjiang showed the worst synthetical properties. Using stepwise regression and principal component analysis, the plant height, spike length, grain number per panicle, seed setting rate, primary branch number, grain aspect ratio, grain yield per plant, single spike grain weight and 1000-grain weight were selected as the key indexes for rice phenotypic traits.

Key words: Rice, Germplasm resources, Phenotypic traits, Genetic diversity, Comprehensive assessment

Table 1

Names of Ningxia and Xinjiang rice germplasm and their D value, comprehensive ranking"

编号ID 种质名称Name of gerplasm D值D-value 排名Ranking
1 花粳22 0.374 171
2 宁粳16号 0.418 139
3 宁218 0.742 4
4 花117 0.433 129
5 鉴10 0.509 76
6 鉴40 0.584 35
7 鉴1307 0.556 48
8 鉴1309 0.450 115
9 鉴1315 0.634 19
10 鉴1318 0.545 53
11 鉴1321 0.615 26
12 鉴1322 0.497 88
13 鉴1323 0.521 69
14 鉴1324 0.617 25
15 鉴1326 0.648 14
16 鉴1330 0.371 175
17 鉴1331 0.402 151
18 鉴1333 0.457 110
19 鉴1335 0.611 28
20 鉴1336 0.497 85
21 鉴1338 0.497 86
编号ID 种质名称Name of gerplasm D值D-value 排名Ranking
22 鉴1340 0.583 37
23 鉴1343 0.524 68
24 鉴1344 0.473 100
25 鉴1345 0.612 27
26 鉴1348 0.501 82
27 鉴1350 0.549 52
28 鉴1351 0.513 74
29 鉴1354 0.506 78
30 鉴1355 0.481 96
31 鉴1356 0.388 163
32 鉴1358 0.543 55
33 鉴1359 0.435 127
34 2012-128 0.591 34
35 2012-150 0.622 22
36 2012-321 0.675 9
37 2012-350 0.397 155
38 2012-433 0.529 64
39 2012-441 0.416 144
40 2012-500 0.648 13
41 2012-615 0.604 31
42 2012-743 0.608 29
43 2012-810 0.636 17
44 2013-30 0.553 50
45 2013-409 0.635 16
46 2013-1044 0.646 15
47 2013-1097 0.569 42
48 2013-1099 0.493 89
49 13-1072 0.479 98
50 13-1 0.624 20
51 13-1044 0.658 12
52 13-1099 0.566 45
53 2011XW-200 0.617 24
54 节17 0.497 87
55 XM-307 0.519 70
56 2012QX-18 0.537 56
57 花123 0.368 176
58 宁资629 0.403 148
59 花124 0.550 51
60 08X1271 0.372 174
61 2013LJ-17 0.443 121
62 2012X-8 0.429 132
63 2013LJ-10 0.573 38
64 京宁4号 0.493 91
65 13-59 0.506 80
66 宁资69 0.375 169
67 京宁14号 0.582 36
68 节15 0.572 41
69 京宁10号 0.532 58
70 节12 0.461 107
71 花127 0.351 180
72 节18 0.678 8
编号ID 种质名称Name of gerplasm D值D-value 排名Ranking
73 宁大15145 0.543 54
74 宁大15146 0.452 113
75 宁大15147 0.567 44
76 宁大15148 0.382 167
77 宁大15149 0.444 119
78 宁大15150 0.529 67
79 宁大15151 0.527 66
80 宁大15152 0.501 83
81 宁大15153 0.530 65
82 富源4号 0.441 123
83 宁粳51号 0.530 63
84 宁大12597 0.423 136
85 宁大15157 0.448 118
86 京宁28 0.487 95
87 京宁29 0.366 177
88 2012XW-103 0.701 5
89 2012XW-239 0.746 3
90 花128 0.616 23
91 花133 0.691 7
92 2012XW-7 0.559 47
93 SD-9 0.604 30
94 2013LJ-10 0.635 18
95 2012XW-4 0.656 11
96 HR-6 0.492 90
97 花132 0.670 10
98 花129 0.691 6
99 HR-4 0.795 1
100 HR-8 0.571 40
101 HR-3 0.765 2
102 HR-1 0.468 103
103 宁41 0.424 137
104 宁11 0.488 93
105 09710 0.506 77
106 新引区2015-15 0.518 73
107 2014-14 0.515 72
108 新引北区-14 0.455 111
109 新引北区-3 0.566 43
110 新引北区-6 0.488 94
111 新稻引 0.510 75
112 新引北区-8 0.373 172
113 新稻10号 0.386 166
114 新引北区-11 0.499 84
115 新引区2015-8 0.440 125
116 新引区2015-4 0.377 168
117 新引区2015-14 0.396 157
118 新引区2015-13 0.203 193
119 新引区2015-1 0.255 189
120 新引区2015-3 0.533 60
121 新引区2015-2 0.215 192
122 阿稻29 0.423 138
123 新引区2015-9 0.443 122
编号ID 种质名称Name of gerplasm D值D-value 排名Ranking
124 08GM38 0.415 142
125 新稻11号 0.354 179
126 新引北区-7 0.411 147
127 0841 0.430 133
128 新引北区-5 0.468 104
129 新引北区-10 0.358 178
130 新引区2015-5 0.377 170
131 新引北区-4 0.532 59
132 新引北区-12 0.436 124
133 新引区2015-6 0.284 187
134 96-16 0.438 126
135 新引北区-9 0.527 62
136 新引区2015-7 0.425 135
137 新引北区-1 0.419 140
138 新引北区-13 0.447 117
139 08GY-16 0.373 173
140 2015-1 0.474 101
141 0854 0.457 108
142 新引区2015-12 0.517 71
143 0953-4-5 0.482 97
144 7-2 0.457 109
145 231112-1 0.450 114
146 新稻1号 0.390 161
147 233312-6 0.454 112
148 20-64-6 0.533 61
149 210-15 0.463 106
150 20-70 0.556 49
151 新稻27选 0.426 134
152 20-16 0.327 182
153 新稻36号 0.408 149
154 208-7 0.598 33
155 新稻46号 0.396 156
156 99-28 0.476 102
157 新稻19号 0.237 191
158 08GY38-7-2 0.307 185
159 9901 0.274 188
160 新稻34号 0.386 162
161 伊选2-2 0.407 146
162 6096 0.252 190
163 新稻28号 0.431 131
164 4368 0.505 79
165 粮黑2号 0.411 145
166 粮香5号 0.601 32
167 伊犁系选 0.562 46
168 新稻43号 0.384 165
169 粮黑稻 0.318 183
170 6090 0.393 160
171 粮粳16号 0.351 181
172 10-11 0.402 152
173 新稻17号 0.498 81
174 108品系 0.415 143
编号ID 种质名称Name of gerplasm D值D-value 排名Ranking
175 新引区2015-11 0.401 153
176 伊粳12号 0.302 186
177 阿稻28 0.403 150
178 恢复系 0.387 164
179 08GY12-7 0.415 141
180 粮粳15 0.573 39
181 6089 0.463 105
182 伊选2号 0.433 128
183 粮粳10号 0.448 116
184 新引区2015-10 0.392 159
185 213-29-2 0.474 99
186 6109 0.433 130
187 6080 0.310 184
188 苏选-2 0.443 120
189 粮粳5号 0.623 21
190 4360 0.393 158
191 伊选-4 0.398 154
192 伊粳13号 0.488 92
193 新核1号 0.535 57

Table 2

Genetic variation of Ningxia and Xinjiang rice germplasm"

性状Traits 均数Mean 标准差SD 变异幅度Variation range 变异系数CV (%) F值F-value
株高PH (cm) 94.33 7.04 73.00~116.79 5.50 4.81**
穗长PL (cm) 18.52 1.61 14.6~22.5 6.32 4.55**
每穗总粒数GNP 142.39 27.86 81.10~251.52 13.78 4.97**
每穗实粒数FGNP 124.04 22.87 73.10~184.18 13.96 4.30**
结实率SSR 0.877 0.25 0.569~0.969 6.75 3.09**
着粒密度(1cm内着粒数)GD 7.67 1.38 4.12~12.57 13.97 3.81**
一次枝梗数NFPB 11.22 1.51 8.0~15.0 9.50 4.87**
二次枝梗数NSPB 23.79 6.66 10.2~51.1 19.95 4.93**
谷粒长GL (mm) 74.95 5.46 53.89~93.58 7.17 2.38**
谷粒宽GW (mm) 33.93 2.29 27.13~39.07 5.65 2.98**
谷粒长宽比GL/GW 2.23 0.22 1.73~3.10 7.97 3.13**
单株产量SWP (g) 33.13 6.97 2.2~64.1 23.80 1.98**
单穗粒重GWP (g) 3.22 0.64 1.8~5.0 14.48 5.04**
千粒重TSW (g) 25.73 3.01 3.8~31.8 7.47 4.39**

Fig.1

Genetic diversity index of Ningxia and Xinjiang rice germplasm based on 14 quantitative traits"

Fig.2

Genetic diversity index between Ningxia rice germplasm and Xinjiang rice germplasm based on 14 quantitative traits"

Fig.3

Cluster analysis based on 14 quantitative traits of Ningxia and Xinjiang rice germplasm"

Table 3

Correlation coefficients of 14 quantitative traits"

性状
Traits		 穗长
PL		 每穗总粒数
GNP		 每穗实粒数
FGNP		 结实率
SSR		 着粒密度
GD		 一次枝梗数
NFPB		 二次枝梗数
NSPB		 谷粒长
GL		 谷粒宽
GW		 谷粒长宽比
GL/GW		 单株产量
SWP		 单穗粒重
GWP		 千粒重
TSW
株高PH 0.493** 0.544** 0.549** 0.049 -0.358** -0.397** -0.481** -0.205** -0.127* -0.254** -0.146* -0.485** -0.037
穗长PL 0.384** 0.383** 0.004 -0.062 -0.277** -0.300** -0.263** -0.017 -0.211** -0.235** -0.436** -0.208**
每穗总粒数GNP 0.883** 0.022 -0.850** -0.632** -0.834** -0.080 -0.143* -0.041 -0.269** -0.669** -0.128*
每穗实粒数FGNP 0.173* -0.740** -0.645** -0.739** -0.088 -0.100 -0.000 -0.326** -0.789** -0.051
结实率SSR -0.033 -0.116* -0.183* -0.070 -0.091 -0.119* -0.036 -0.084 -0.070
着粒密度GD -0.555** -0.704** -0.185* -0.173* -0.021 -0.172* -0.495** -0.208*
一次枝梗数NFPB -0.518** -0.175* -0.179* -0.010 -0.127* -0.612** -0.015
二次枝梗数NSPB -0.051 -0.252** -0.199* -0.227** -0.611** -0.200*
谷粒长GL -0.033 -0.646** -0.004 -0.089 -0.196*
谷粒宽GW -0.682** -0.102* -0.091 -0.342**
谷粒长宽比GL/GW -0.057 -0.008 -0.093
单株产量SWP -0.326** -0.143*
单穗粒重GWP -0.286**

Table 4

Eigenvalues, contribution rate, and cumulative contribution rate of seven principal components based on 14 phenotyple traits"

性状Characters Prin1 Prin2 Prin3 Prin4 Prin5 Prin6 Prin7
特征值Eigenvalues 5.14 2.09 1.97 1.16 0.89 0.78 0.67
贡献率Contribution rate (%) 36.73 14.93 14.08 8.29 6.33 5.55 4.76
累积贡献率Cumulative contribution rate (%) 36.73 51.66 65.73 74.02 80.35 85.90 90.67
株高PH 0.293 0.197 0.111 -0.134 0.214 -0.253 0.186
穗长PL 0.204 0.262 0.313 -0.170 -0.056 -0.641 0.114
每穗总粒数GNP 0.417 -0.090 -0.092 -0.153 -0.077 0.021 0.048
每穗实粒数FGNP 0.406 -0.109 0.077 0.165 0.109 0.066 0.166
结实率SSR -0.064 -0.019 0.345 0.688 0.387 0.114 0.233
着粒密度GD 0.346 -0.202 -0.245 -0.056 -0.035 0.360 -0.059
一次枝梗数NFPB 0.324 -0.116 -0.004 0.114 0.243 -0.165 -0.469
二次枝梗数NSPB 0.379 0.030 -0.147 -0.093 -0.036 0.142 0.132
谷粒长GL 0.003 0.578 0.191 -0.248 0.087 0.461 0.196
谷粒宽GW -0.096 -0.343 0.424 -0.423 0.053 0.188 0.336
谷粒长宽比GL/GW 0.069 0.636 -0.170 0.117 0.036 0.153 -0.144
单株产量SWP 0.155 0.042 0.182 0.360 -0.823 0.023 0.172
单穗粒重GWP 0.351 -0.053 0.316 0.075 0.100 0.166 -0.080
千粒重TSW -0.024 0.031 0.544 -0.120 -0.153 0.178 -0.647
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