Genome-wide analysis of auxin transport genes identifies the hormone responsive patterns associated with leafy head formation in Chinese cabbage
文献类型： 外文期刊
作者： Gao, Li-wei 1 ; Lyu, Shan-wu 1 ; Tang, Jun; Zhou, Dao-yun 1 ; Bonnema, Guusje; Xiao, Dong 1 ; Hou, Xi-lin 1 ; Zhang 1 ;
作者机构： 1.Nanjing Agr Univ, State Key Lab Crop Genet & Germplasm Enhancement, Minist Agr, Key Lab Biol & Germplasm Enhancement Hort Crops E, Nanjing 210095, Jiangsu, Peoples R China
2.Nanjing Agr Univ, State Key Lab Crop Genet & Germplasm Enhancement, Minist Agr, Key Lab Biol & Germplasm Enhancement Hort Crops E, Nanjing 210095, Jiangsu, Peo
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2017 年 7 卷
页码：
收录情况： SCI
摘要： Auxin resistant 1/like aux1 (AUX/LAX), pin-formed (PIN) and ATP binding cassette subfamily B (ABCB/MDR/PGP) are three families of auxin transport genes. The development-related functions of the influx and efflux carriers have been well studied and characterized in model plants. However, there is scant information regarding the functions of auxin genes in Chinese cabbage and the responses of exogenous polar auxin transport inhibitors (PATIs). We conducted a whole-genome annotation and a bioinformatics analysis of BrAUX/LAX, BrPIN, and BrPGP genes in Chinese cabbage. By analyzing the expression patterns at several developmental stages in the formation of heading leaves, we found that most auxin-associate genes were expressed throughout the entire process of leafy head formation, suggesting that these genes played important roles in the development of heads. UPLC was used to detect the distinct and uneven distribution of auxin in various segments of the leafy head and in response to PATI treatment, indicated that the formation of the leafy head depends on polar auxin transport and the uneven distribution of auxin in leaves. This study provides new insight into auxin polar transporters and the possible roles of the BrLAX, BrPIN and BrPGP genes in leafy head formation in Chinese cabbage.
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