Screening method for hydroxyl carthamin yellow A-containing safflower
A kind of hydroxyl safflower, screening method technology, applied in the field of biological sciences
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Embodiment 1
[0037] Embodiment 1: TDF-8 of the present invention, 9, the separation of 27 fragments
[0038] 1. Determination of F by high performance liquid chromatography, thin layer chromatography and ultraviolet spectrophotometry 2 The content of hydroxysafflor yellow A in the generation population was detected for its presence or absence.
[0039] 2. According to the measurement results, the safflower corollas containing and not containing hydroxysafflower yellow A were taken respectively, the total RNA was extracted, and converted into double-stranded cDNA.
[0040] 3. Construct near-isogenic pools with and without hydroxysafflower yellow A, take 1 μg of cDNA from a single plant containing hydroxysafflower yellow A, a total of 10 strains are mixed to form a pool; another one without hydroxysafflower yellow A A total of 10 cDNA strains were mixed with 1 μg each to form a pool.
[0041] 4. cDNA-AFLP differential expression analysis:
Embodiment 2
[0048] Example 2: Verification of TDF-8, 9, and 27 gene expression by RT-PCR:
[0049] A. Design and synthesize RT-PCR primers according to the sequences of TDF-8 (SEQ ID NO: 1), TDF-9 (SEQ ID NO: 2), and TDF-27 (SEQ ID NO: 3),
[0050] TDF-8 Primer: S8: 5'-GTCCTGAGTAAGCAAGTGTGT-3'
[0051] A8: 5'-ACCATTGATAGCGGTGTCCA-3'
[0052] TDF-9 Primer: S9: 5'-CTCCTTGCGGAACATGAATGCTG-3'
[0053] A9: 5'-AGCGTACCAATTCTGGACCTGAT-3'
[0054] TDF-27 Primer: A27: 5'-AGTAATCTTGGGCATCCACGCTG-3'
[0055] S27: 5'-TTGGAGGATAAAGAGGAGGATCAGG-3'
[0056] B, extract the total RNA of Henan Dahongpao safflower;
[0057] C. Using the safflower total RNA as a template, transcribe it into the first-strand cDNA;
[0058] D, using the first-strand cDNA as a template, adding synthetic primers, and performing PCR amplification;
[0059] E, agarose electrophoresis, ultraviolet color development.
[0060] F. Sequencing.
[0061] The same sequence gene as SEQ ID NO: 1-3 ...
Embodiment 3
[0062] Embodiment 3: the application of this screening method:
[0063] 1. Extract the total RNA of safflower with and without hydroxysafflower yellow A in each producing area, and convert it into double-stranded cDNA.
[0064] 2. Using the combination of E10M8 and E9M3 primers, the cDNA-AFLP differential expression analysis was performed on safflowers containing hydroxy safflower yellow A and those without safflower yellow A by the method of implementation 1. Flower, Changji safflower, Xinxiang safflower, Heze safflower, Bozhou safflower, Jianyang safflower, Kaifeng safflower, Zhengzhou safflower, Chengdu safflower, Weishan safflower, Jiuquan safflower, Kunming safflower get 3 unique However, Ruoqiang safflower, Tacheng safflower, Urumqi safflower, Qingxu safflower and Hainan safflower were not obtained.
[0065] 3. The above-mentioned safflower varieties containing 3 specific fragments all contain hydroxysafflower yellow A as determined by HPLC method; while the varieties w...
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