| Correlation between floral characteristics, agronomic traits and oil content of winter rapeseed (Brassica rapa L.) in northern China |
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| DOI：10.7606/j.issn.1000-7601.2019.05.19 |
| Key Words: Brassica rapa L. floral traits agronomic traits oil content correlation analysis |
| Author Name | Affiliation | | BAI Jing | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SUN Wan-cang | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | MA Li | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WU Jun-yan | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | PU Yuan-yuan | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | HE Hui-li | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | XU De-rong | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | YAN Jiang-mei | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CHANG Yu | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | XU Chun-mei | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | FANG Yan | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LI Xue-cai | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | NIU Zao-xia | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | PAN Rong-de | Gansu Provincial Engineering Research Center of Rapeseed, Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Improvement and Key Laboratory of Crop Genetics and Planting Innovation of Gansu Province, College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| To study the correlation between the diameter of corolla and the 1000-grain weight and oil content of winter rapeseed (Brassica rapa L.) in northern China, twenty of different winter rapeseeds were used as materials to measure flower size, agronomic traits, seed oil content and protein content, and real-time quantitative PCR analysis was performed on the control gene mf6, apetala and myb. The results showed that the diameter of the corolla was greatly affected by the diameter of the pistil; The three principal components extracted from the principal component analysis could be integrated into the length of each trait of the flower, the diameter of the pistil, and the width of each trait of the flower; Using the diameter of the corolla as an indicator, 20 Chinese cabbage-type winter corollas were divided into three groups; Correlation analysis showed that the diameter of the corolla was significantly positively correlated with the 1000-grain weight, with a correlation coefficient of 0.663. 1000-grain weight was significantly positively correlated with oil content and significantly negatively correlated with protein content. Compared with florets, the relative expression of mf6 in large flowers were increased by 151.63%, while that of apetala and myb were down by 83.80% and 72.70%, respectively. There was a significant difference in flower sizes among winter rapeseed (Brassica rapa L.) varieties in northern China. In breeding, the 1000-grain weight can be increased by increasing the diameter of the corolla, thereby increasing the oil production of rapeseed and cultivating the high oil content winter rapeseed (Brassica rapa L.). mf6, apetala and myb genes can regulate the growth and development of floral of winter rape (Brassica rapa L.) |
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