Crops ›› 2023, Vol. 39 ›› Issue (3): 75-79.doi: 10.16035/j.issn.1001-7283.2023.03.010

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Genetic Analysis of Color Traits in Sheath, Silk, Anther and Cob of Isolated Population Based on Maize DH Lines

Li Zhongnan1(), Wang Yueren2, Ma Yiwen2, Xiang Yang1, Wu Shenghui2, Qu Haitao2, Li Fulin2, Zhang Shuqin2, Li Guangfa2()   

  1. 1Agricultural and Technology Extension Station of Jilin Province, Changchun 130033, Jilin, China
    2Tonghua Academy of Agricultural Sciences, Meihekou 135007, Jilin, China
  • Received:2021-08-22 Revised:2021-09-08 Online:2023-06-15 Published:2023-06-16

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Abstract:

The hybrid F1 with green sheath, green silk, green anther and white cob inbred line B20 as female parent, purple sheath, red silk, purple anther and red cob DH line D752 as male parent was cross induced by induction line, the haploid was doubled naturally, and the number of DH lines with various color trait in organs from the obtained DH line isolated population was analyzed by chi square. The results showed that purple sheath was linked with red silk gene, and green sheath was linked with green silk gene, and the recombination rate was 11.61%. The anther color and cob color were inherited independently by a pair of genes, respectively, purple anther was dominant and green anther was recessive. The dominant expression of red silk genes was restricted by green sheath, the dominant expression of purple anther genes was restricted by green silk.

Key words: Maize, DH lines, Sheath color, Silk color, Anther color, Cob color, Inheritance

Table 1

Consanguinity and corresponding varieties or combinations of inbred lines"

自交系Inbred line 血缘系谱Consanguinity 来源Source 组合Combination 品种或高产组合Variety or high yield combination
D752 PH4CV×A6 DH系，中国 PH6WC×D752 高产组合
B20 丹340×吉853 旅大红骨×黄早四，中国 1623×B20 通育1101（吉审玉2016020）

Table 2

Characters color of parents and F1"

材料
Material		 叶鞘
Sheath		 花丝
Silk		 花药
Anther		 穗轴
Cob
B20 绿色 绿色 绿色 白色
D752 紫色 红色 紫色 红色
F1 紫色 红色 紫色 红色

Table 3

Number and chi square test of DH lines with dominant and recessive expression of color traits"

项目
Item		 叶鞘色Sheath color 花丝色Silk color 花药色Anther color 穗轴色Cob color
紫色Purple 绿色Green 红色Red 绿色Green 紫色Purple 绿色Green 红色Red 白色White
数量Number 123 101 110 114 29 195 158 66
P值P-value 0.16 0.84 0.00 0.00
1:1 是 是 否 否

Table 4

Number and chi square test of DH lines with dominant and recessive expression of sheath and silk color"

项目
Item		 紫色叶鞘红色花丝
Purple sheath and red silk		 紫色叶鞘绿色花丝
Purple sheath and green silk		 绿色叶鞘红色花丝
Green sheath and red silk		 绿色叶鞘绿色花丝
Green sheath and green silk
数量Number 110 13 0 101
P值P-value 0.00
1:1:1:1 否

Table 5

Number and chi square test of DH lines with dominant and recessive expression of sheath and anther color"

项目
Item		 紫色叶鞘紫色花药
Purple sheath and purple anther		 紫色叶鞘绿色花药
Purple sheath and green anther		 绿色叶鞘紫色花药
Green sheath and purple anther		 绿色叶鞘绿色花药
Green sheath and green anther
数量Number 29 94 0 101
P值P-value 0.00
1:1:1:1 否

Table 6

Number and chi square test of DH lines with dominant and recessive expression of silk and anther color"

项目
Item		 红色花丝紫色花药
Red silk and purple anther		 红色花丝绿色花药
Red silk and green anther		 绿色花丝紫色花药
Green silk and purple anther		 绿色花丝绿色花药
Green silk and green anther
数量Number 29 81 0 114
P值P-value 0.00
1:1:1:1 否

Table 7

Number and chi square test of red and white cob DH lines with different sheath color, silk color and anther color"

DH系DH line 红轴Red cob 白轴White cob P值P-value 1:1
紫色叶鞘红色花丝紫色花药
Purple sheath color, red silk color and purple anther color		 18 11 0.27 是
紫色叶鞘红色花丝绿色花药
Purple sheath color, red silk color and green anther color		 60 21 0.00 否
紫色叶鞘绿色花丝紫色花药
Purple sheath color, green silk color and purple anther color		 0 0
紫色叶鞘绿色花丝绿色花药
Purple sheath color, green silk color and green anther color		 7 6 1.00 是
绿色叶鞘红色花丝紫色花药
Green sheath color, red silk color and purple anther color		 0 0
绿色叶鞘红色花丝绿色花药
Green sheath color, red silk color and green anther color		 0 0
绿色叶鞘绿色花丝紫色花药
Green sheath color, green silk color and purple anther color		 0 0
绿色叶鞘绿色花丝绿色花药
Green sheath color, green silk color and green anther color		 73 28 0.00 否
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