Claret Chinese cabbage breeding method
A technology of purple and Chinese cabbage, applied in the field of cruciferous vegetable breeding, can solve the problem of no purple Chinese cabbage resources, and achieve the effect of rich varieties and high nutritional value
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Embodiment 1
[0043]Select the purple mustard local variety Hongyeqingcai in Qianyang, Hunan (quoted from the National Variety Resources Medium-term Preservation Bank of the Institute of Vegetable and Flower Research, Chinese Academy of Agricultural Sciences, introduction number: II3A0138), through continuous selfing of individual plants through optimized plants, selfing 3-5 generations, The self-bred seeds of Mustard mustard with no trait segregation in offspring and purple-red stems and leaves were selected to obtain a genetically stable homozygous inbred line PM058.
[0044] Preparation of B5 extraction medium: According to the B5 medium described in Gamborg, O.L., et al., 1968, Nutrient requirements of suspension cultures of soybean root cells. Exp. Cell Res. 50, 151-158., first prepare macronutrients (concentrated 20 times), trace elements (concentrated 200 times), iron salts (concentrated 200 times) and organic substances other than sucrose (concentrated 200 times) concentrated stock s...
Embodiment 2
[0053] Configure B5 solid medium: according to the B5 medium described in the literature Gamborg, O.L., et al., 1968, Nutrient requirements of suspension cultures of soybean root cells. Exp. Cell Res. 50, 151-158. First prepare macronutrients (concentrated 20 times), trace elements (concentrated 200 times), iron salts (concentrated 200 times) and organic substances other than sucrose (concentrated 200 times) concentrated stock solution, then take a 1L volumetric flask, take macroelement concentrated stock solution 50ml, 5ml each of trace elements, iron salts, and concentrated stock solutions of the above-mentioned organic substances, and the following substances were added to make the concentration 6-benzylaminopurine (6-BA) 1.5mg·L -1 , α-naphthaleneacetic acid (NAA) 0.05mg·L -1 , sucrose 30.0g·L -1 , agar 7.0g·L -1 , distilled water to volume, then adjust the pH value of the solution to 5.8-6.0, and distribute it in 100ml Erlenmeyer flasks. After autoclaving (121°C, 15min...
Embodiment 3
[0065] F1 plants were obtained through distant hybridization with purple mustard PM058 as the female parent and Chinese cabbage DH line Juhongxin C24 as the male parent;
[0066] The obtained fuchsia F1 plant was used as the female parent, and the DH line of Chinese cabbage, Juhongxin C24, was used as the male parent to backcross to obtain (Juhongxin C24) BC1 seeds;
[0067] The obtained (Juhongxin C24) BC1 seeds were identified in the field, the purple-red plant was selected as the female parent, and the Chinese cabbage DH line Juhongxin C24 was used as the male parent to continue backcrossing to obtain (Juhongxin C24) BC2 seeds;
[0068] The obtained (Juhongxin C24) BC2 seeds were identified in the field, the purple-red plant was selected as the female parent, and the Chinese cabbage DH line Juhongxin C24 was used as the male parent to continue backcrossing. Through field selection and continuous backcrossing, normal flowering and seed formation were obtained. Normal fuchsia...
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