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Now showing items 1 - 3 of 3

  • Marcksb plays a key role in the secretory pathway of zebrafish Bmp2b

    Ye, Ding   Wang, Xiaosi   Wei, Changyong   He, Mudan   Wang, Houpeng   Wang, Yanwu   Zhu, Zuoyan   Sun, Yonghua   Mullins, Mary C.  

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  • The PIN gene family in cotton (Gossypium hirsutum):genome-wide identification and gene expression analyses during root development and abiotic stress responses

    He, Peng   Zhao, Peng   Wang, Limin   Zhang, Yuzhou   Wang, Xiaosi   Xiao, Hui   Yu, Jianing   Xiao, Guanghui  

    Background: Cell elongation and expansion are significant contributors to plant growth and morphogenesis, and are often regulated by environmental cues and endogenous hormones. Auxin is one of the most important phytohormones involved in the regulation of plant growth and development and plays key roles in plant cell expansion and elongation. Cotton fiber cells are a model system for studying cell elongation due to their large size. Cotton is also the world's most utilized crop for the production of natural fibers for textile and garment industries, and targeted expression of the IAA biosynthetic gene iaaM increased cotton fiber initiation. Polar auxin transport, mediated by PIN and AUX/LAX proteins, plays a central role in the control of auxin distribution. However, very limited information about PIN-FORMED (PIN) efflux carriers in cotton is known. Results: In this study, 17 PIN-FORMED (PIN) efflux carrier family members were identified in the Gossypium hirsutum (G. hirsutum) genome. We found that PIN1-3 and PIN2 genes originated from the At subgenome were highly expressed in roots. Additionally, evaluation of gene expression patterns indicated that PIN genes are differentially induced by various abiotic stresses. Furthermore, we found that the majority of cotton PIN genes contained auxin (AuxREs) and salicylic acid (SA) responsive elements in their promoter regions were significantly up-regulated by exogenous hormone treatment. Conclusions: Our results provide a comprehensive analysis of the PIN gene family in G. hirsutum, including phylogenetic relationships, chromosomal locations, and gene expression and gene duplication analyses. This study sheds light on the precise roles of PIN genes in cotton root development and in adaption to stress responses.
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  • Abundance of Early Embryonic Primordial Germ Cells Promotes Zebrafish Female Differentiation as Revealed by Lifetime Labeling of Germline

    Ye, Ding   Zhu, Lin   Zhang, Qifeng   Xiong, Feng   Wang, Houpeng   Wang, Xiaosi   He, Mudan   Zhu, Zuoyan   Sun, Yonghua  

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