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Fast tracking alien gene discovery by molecular markers in a late flowering Chinese cabbage-cabbage translocation line‘AT7–4'

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Horticultural Plant Journal 2023年第1期9卷 89-97页

作者： Hui Li Aixia Gu Daling Feng Na Li Rui Yang Xinpei Zhang Shuangxia Luo Umer Karamat Qianyun Wang Shuxin Xuan Xueping Chen Yin Lu Yanhua Wang Shuxing Shen Jianjun Zhao State Key Laboratory of North China Crop Improvement and Regulation Key Laboratory of Vegetable Germplasm Innovation and Utilization of HebeiCollaborative Innovation Center of Vegetable Industry in HebeiBaodingHebei 071000China College of Horticulture Hebei Agricultural UniversityBaodingHebei 071000China College of Life Science Hebei Agricultural UniversityBaodingHebei 071000China

flowering time is an important agronomic trait of Chinese cabbage with late flowering being a primary breeding *** our previous work,we obtained Chinese cabbage-cabbage translocation lines that contained several beneficial cabbage ***-specific molecular markers show that these genes were coming from chromosome C01 of *** this study,we investigated the inheritance of flowering time in a couple of translocation lines and analyzed the transmission rate of molecular markers in the ***,we obtained the late flowering Chinese cabbage-cabbage translocation line‘AT7–4’in which the flowering time was later than that of‘85–1’by about 7 days under 4-week *** on previous studies of the genomes of Chinese cabbage and cabbage,we located the cabbage-specific molecular markers that were closely linked at the top of the chromosome A01 in the F2mapping population generated by self-crossing F1s derived from a cross between the translocation line‘AT7–4’and Chinese cabbage‘14–36’.Five flowering-related genes in the alien fragment were found by functional annotation and their molecular markers were *** study lays the foundation for the future improvement of Chinese cabbage varieties using A-C translocation lines.

关键词： Chinese cabbage Translocation line Alien gene Molecular marker late flowering

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