花生籽仁蔗糖含量遗传模型分析

doi:10.3724/SP.J.1006.2024.34050

Abstract

Abstract:

Peanut (Arachis hypogaea L.) is one of the important cash crops in China, and about 40% of peanuts are used for food production. The sucrose content was positively correlated with the flavor and taste of peanut and its products, thus increasing sucrose content in kernel was significant for the promotion of peanut quality. In this study, two F_2:3 populations (NYBP×SYT5-1 and 19-1934×JHT1) were constructed to investigate the genetic model of sucrose content, and analyze the correlations between sucrose content with oil content, protein content, and other seed traits. The results showed that the sucrose contents of peanut kernel in two populations were continuously distributed and abundantly varied, and the transgressive segregation phenomenon were observed. In the two populations, sucrose content was significantly negatively correlated with oil content but significantly positively correlated with protein content. However, the correlations between sucrose content and kernel length, kernel width, and 100-kernel weight were inconsistent. The genetic analysis in two populations showed that the sucrose content in peanut kernel was mainly regulated by two pairs of main genes with the additive effect and dominant effect. There was the interaction between the two main genes, as well as the additive effect. This study initially reveals the genetic regulation of sucrose content in peanut kernels, which is beneficial for the breeding of edible peanut varieties and the cultivation of special varieties.

Key words: peanut, sucrose content, oil content, correlation analysis, genetic model

ZHI Chen-Yang, XUE Xiao-Meng, WU Jie, LI Xiong-Cai, WANG Jin, YAN Li-Ying, WANG Xin, CHEN Yu-Ning, KANG Yan-Ping, WANG Zhi-Hui, HUAI Dong-Xin, HONG Yan-Bin, JIANG Hui-Fang, LEI Yong, LIAO Bo-Shou. Analysis of genetic model of sucrose content in peanut[J].Acta Agronomica Sinica, 2024, 50(1): 32-41.

Figures/Tables 7

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杂交组合 Cross	亲本 Parents		F_2:3群体 F_2:3 population
杂交组合 Cross	亲本 Parents		最小值 Minimum (%)	最大值 Maximum (%)	平均值 Mean (%)	标准差 SD (%)	变异系数 CV (%)	偏度 Skewness	峰度 Kurtosis
NYBP×SYT5-1	NYBP (2.53%)^a	SYT5-1 (6.41%)^a	0.19	9.36	4.37	158.00	0.36	0.578	-0.194
19-1934×JHT1	19-1934 (2.61%)^a	JHT1 (6.34%)^a	0.09	9.51	3.75	2.03	0.54	—	—

模型 Model	NYBP×SYT5-1		19-1934×JHT1
模型 Model	极大似然值 Maximum likelihood value	AIC值 AIC value	极大似然值 Maximum likelihood value	AIC值 AIC value
0MG	-880.62	1765.24	-319.34	642.67
1MG-AD	-854.67	1717.34	-303.63	615.25
1MG-A	-861.88	1729.77	-311.98	629.95
1MG-EAD	-859.98	1727.95	-305.59	619.18
1MG-NCD	-856.16	1720.32	-319.34	646.68
2MG-ADI	-855.91	1731.82	-319.32	658.64
2MG-AD	-847.85	1707.69	-298.02	608.03
2MG-A	-855.54	1719.08	-303.72	615.44
2MG-EA	-854.99	1715.97	-314.18	634.36
2MG-CD	-880.62	1769.28	-313.89	635.79
2MG-EAD	-880.62	1767.28	-318.87	643.73

杂交组合 Cross	模型 Model	U₁²	P(U₁²)	U₂²	P(U₂²)	U₃²	P(U₃²)	nW²	P(N_w²)	D_N	P(D_n)
NYBP× SYT5-1	1MG-AD	1.00E-04	0.9940	0.0002	0.9892	0.0006	0.9800	0.0218	0.9950	0.0166	0.9994
	1MG-EAD	0.1167	0.7326	0.1007	0.7509	0.0029	0.9572	0.0789	0.7087	0.0379	0.5086
	1MG-NCD	0.0274	0.8685	0.0162	0.8988	0.0175	0.8949	0.0317	0.9701	0.0200	0.9908
	2MG-ADI	0.0204	0.8864	0.0047	0.9453	0.0778	0.7803	0.0333	0.9642	0.0189	0.9956
	2MG-AD	0.0010	0.9751	0.0010	0.9753	0.0000	0.9976	0.0102	1.0000	0.0159	0.9997
	2MG-A	0.0047	0.9452	0.0179	0.8936	0.0722	0.7881	0.0316	0.9707	0.0228	0.9651
	2MG-EA	0.0344	0.8528	0.0269	0.8697	0.0039	0.9502	0.0504	0.8742	0.0327	0.6943
19-1934× JHT1	1MG-AD	4.00E-04	0.9842	0.0033	0.9545	0.0230	0.8793	0.0330	0.9654	0.0482	0.8603
	1MG-A	0.0821	0.7744	0.0765	0.7822	0.0000	0.9969	0.0844	0.6784	0.0517	0.7988
	1MG-EAD	0.0059	0.9389	0.0337	0.8544	0.1912	0.6620	0.0429	0.9176	0.0474	0.8722
	2MG-AD	0.0017	0.9669	0.0044	0.9472	0.0109	0.9169	0.0117	1.0000	0.0336	0.9939
	2MG-A	1.2530	0.2630	0.8780	0.3487	0.3447	0.5571	0.2274	0.2240	0.0911	0.1561
	2MG-EA	0.0772	0.7811	0.2187	0.6400	0.6310	0.4270	0.1651	0.3477	0.0721	0.3984
	2MG-CD	0.0850	0.7707	0.0990	0.7530	0.0168	0.8968	0.0510	0.8705	0.0491	0.8444

组合 Cross	模型 Model	d_a	d_b	h_a	h_b
NYBP×SYT5-1	1MG-AD	1.7069	—	—	—
	1MG-EAD	0.7867	—	—	—
	1MG-NCD	1.4272	—	—	—
	2MG-ADI	1.3168	0.2617	-1.8727	0.2215
	2MG-AD	1.6676	1.2171	-0.6996	-0.3973
	2MG-A	0.3011	1.5194	—	—
	2MG-EA	1.2261	—	—	—
19-1934×JHT1	1MG-AD	1.8713	—	1.6551	—
	1MG-A	1.6177	—	—	—
	1MG-EAD	1.8123	—	—	—
	2MG-AD	1.7948	0.7131	1.9106	-0.1276
	2MG-A	0.2584	2.3986	—	—
	2MG-EA	0.8187	—	—	—
	2MG-CD	1.7337	0.0692	—	—

组合 Cross	模型 Model	主基因方差σ_mg Major-gene variance	主基因遗传率h_mg Heritability (%)
NYBP× SYT5-1	1MG-AD	1.3315	50.1478
	1MG-EAD	0	0
	1MG-NCD	1.5391	57.9683
	2MG-ADI	1.5638	58.8963
	2MG-AD	2.2810	85.9102
	2MG-A	0.8810	33.1817
	2MG-EA	1.7369	65.4163
19-1934× JHT1	1MG-AD	0	0
	1MG-A	3.8168	91.6497
	1MG-EAD	1.9310	46.3678
	2MG-AD	4.0724	97.7852
	2MG-A	3.8973	93.5826
	2MG-EA	4.0716	97.7679
	2MG-CD	2.5741	61.8081

Analysis of genetic model of sucrose content in peanut

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