title: Functional conservation and diversification of the soybean maturity gene E1 and its homologs in legumes.
abstract: Gene regulatory networks involved in flowering time and photoperiodic responses in legumes remain unknown. Although the major maturity gene E1 has been successfully deciphered in soybean, knowledge on the functional conservation of this gene is limited to a certain extent to E1 homologs in legumes. The ectopic expression of Phvul.009G204600 (PvE1L), an E1 homolog from common bean, delayed the onset of flowering in soybean. By contrast, the ectopic expression of Medtr2g058520 (MtE1L) from Medicago truncatula did not affect the flowering of soybean. Characterization of the late-flowering mte1l mutant indicated that MtE1L promoted flowering in Medicago truncatula. Moreover, all transgenic E1, PvE1L and MtE1L soybean lines exhibited phenotypic changes in terms of plant height. Transgenic E1 or PvE1L plants were taller than the wild-type, whereas transgenic MtE1L plants produced dwarf phenotype with few nodes and short internode. Thus, functional conservation and diversification of E1 family genes from legumes in the regulation of flowering and plant growth may be associated with lineage specification and genomic duplication.
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Xingzheng
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhai
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Yaying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Tian
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Yupeng
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wu
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|Information Center of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
authors.forename: Shixiang
authors.initials: S
authors.lastname: Lü
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Guang
authors.initials: G
authors.lastname: Yang
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Yuqiu
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.|University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Hu
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Qingyun
authors.initials: Q
authors.lastname: Bu
authors.affiliation: Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
authors.forename: Zhengjun
authors.initials: Z
authors.lastname: Xia
mesh_terms: D000595:Amino Acid Sequence; D017124:Conserved Sequence; D007887:Fabaceae / Q000235:genetics* / Q000254:growth & development; D035264:Flowers / Q000235:genetics / Q000254:growth & development; D008958:Models, Molecular; D005810:Multigene Family; D017440:Photoperiod; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D030821:Plants, Genetically Modified / Q000254:growth & development*; D017433:Protein Structure, Secondary; D013025:Glycine max / Q000235:genetics / Q000254:growth & development*
chemical_list: D010940:Plant Proteins