|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 百脉根类LATERAL ORGAN BOUNDARIES基因的分离及表达方式(英文)显示文摘植物顶端分生组织可分为中央区,周缘区和肋区。在植物胚后发育中,侧生器官产生于顶端分生组织的周缘区。顶端分生组织和侧生器官之间的边界的建立和维持是一个非常重要的发育过程,许多调节子参与控制这个过程。拟南芥的 LATERALORGANBOUNDARIES(LOB)基因具有独特的表达模式,其表达的范围与上述的边界区域重合。LOB基因隶属于一个大的基因家族——L O B 结构域基因家族。该家族编码的蛋白在 N 端具有一个保守的LOB结构域,该家族 LOB 基因以外的成员也参与拟南芥不同的发育过程。为了探讨在与拟南芥亲缘关系较远的豆科中 LOB 同源基因的功能,我们在豆科模式植物百脉根中分离了3 个 LOB 同源基因,命名为 LjLOB 基因,并用 RNA 原位杂交方法研究了这3个基因的表达模式。研究结果显示,L j L O B 1 和LjLOB3都强烈地在小叶原基的基部表达,这种表达模式可能与小叶原基和复叶原基之间的边界相关。而LjLOB4则在发育中的花芽不同轮之间的边界上表达。百脉根中这3 个基因具有不同的表达模式,强烈地提示它们的功能发生了分歧:L j L O B 1 和L j L O B 3 可能在复叶发育中具有重要功能;而LjLOB4 则可能参与了花的发育。 | 罗江虹 翁琳 罗达 | 2006 | 植物生理与分子生物学学报2006，32，2： | 6 |
| 2 | Multiple Components are Integrated to Determine Leaf Complexity in Lotus japonicus显示文摘Transcription factors and phytohormones have been reported to play crucial roles to regulate leaf complexity among plant species. Using the compound-leafed species Lotus japonicus, a model legume plant with five visible leaflets, we characterized four independent mutants with reduced leaf complexity, proliferating floral meristem (pfm), proliferating floral organ-2 (pfo-2), fused leaflets1 (ful1) and umbrella leaflets (uml), which were further identified as loss-of-function mutants of Arabidopsis orthologs LEAFY (LFY ), UNUSUAL FLORAL ORGANS (UFO), CUP-SHAPED COTYLEDON 2 (CUC2) and PIN-FORMED 1 (PIN1), respectively. Comparing the leaf development of wild-type and mutants by a scanning electron microscopy approach, leaflet initiation and/or dissection were found to be affected in these mutants. Expression and phenotype analysis indicated that PFM/LjLFY and PFO/LjUFO determined the basipetal leaflet initiation manner in L. japonicus. Genetic analysis of ful1 and uml mutants and their double mutants revealed that the CUC2-like gene and auxin pathway also participated in leaflet dissection in L. japonicus, and their functions might influence cytokinin biogenesis directly or indirectly. Our results here suggest that multiple genes were interplayed and played conserved functions in controlling leaf complexity during compound leaf development in L. japonicus. | Zhenhua Wang Jianghua Chen Lin Weng Xin Li Xianglin Cao Xiaohe Hu Da Luo Jun Yang | 2013 | Journal of Integrative Plant Biology2013，55，5： | 6 |
| 3 | 紫花苜蓿根颈芽发育成枝过程中叶元的发生模式研究显示文摘叶元由节、节间、叶器官以及叶腋下的侧生分生组织组成,是植物茎枝生长发育的基本单位.本研究首次采用扫描电镜技术,通过跟踪观察WL168紫花苜蓿根颈芽从萌发至孕蕾期顶端分生组织的微形态发育过程,初步探讨了苜蓿叶元的发生发育规律.结果显示,在苜蓿叶元发生过程中,复叶原基以向顶式的模式形成.腋芽原基和复叶原基均起源于顶端分生组织,但两者并非同步生长,苜蓿叶元的发育过程由此表现出两种模式:模式Ⅰ和模式Ⅱ.模式Ⅰ,复叶原基发育能力强,腋芽原基在侧小叶原基形成后才出现,发育速度缓慢;模式Ⅱ,腋芽原基在托叶原基形成后便开始发生,相对模式Ⅰ发生时间提前,生长速度明显快于复叶原基和生长锥.苜蓿根颈芽在返青出土前,其叶元以模式Ⅰ发生,出土后,转变为模式Ⅱ.当地上叶元数增加到16~17 时,腋芽原基发育为花序,小花原基开始出现.分析表明,根颈芽叶元的发生由模式I转向模式Ⅱ是苜蓿营养生长向生殖生长转变的标志,苜蓿根颈芽在返青出土前已完成了其营养器官的发生,出土后即转入成花过渡期. | 方强恩 张勃 师尚礼 | 2015 | 草业学报2015，24，12： | 6 |
| 4 | 豆科复叶发育分子遗传机制的研究进展显示文摘复叶作为单叶对于环境适应进化的产物,更能适应恶劣的外界机械压力。绝大多数豆科植物具有典型的复叶结构,其发育过程反映了植物复叶发育的基本特征。本文介绍了近年来大豆、豌豆、蒺藜苜蓿和百脉根4种豆科植物复叶发育分子机制的研究进展,比较了它们在复叶发育过程中的异同,以期明晰豆科叶片复杂的发育机制,为豆科作物分子育种改良提供理论指导。 | 杨霞 高金珊 杨素欣 | 2017 | 植物生理学报2017，53，6： | 5 |
| 5 | Genetic control of compound leaf development in the mungbean(Vigna radiata L.)显示文摘Many studies suggest that there are distinct regulatory processes controlling compound leaf development in different clades of legumes.Loss of function of the LEAFY(LFY)orthologs results in a reduction of leaf complexity to different degrees in inverted repeat-lacking clade(IRLC)and non-IRLC species.To further understand the role of LFY orthologs and the molecular mechanism in compound leaf development in non-IRLC plants,we studied leaf development in unifoliate leaf(un)mutant,a classical mutant of mungbean(Vigna radiata L.),which showed a complete conversion of compound leaves into simple leaves.Our analysis revealed that UN encoded the mungbean LFY ortholog(VrLFY)and played a significant role in leaf development.In situ RNA hybridization results showed that STM-like KNOXI genes were expressed in compound leaf primordia in mungbean.Furthermore,increased leaflet number in heptafoliate leaflets1(hel1)mutants was demonstrated to depend on the function of VrLFY and KNOXI genes in mungbean.Our results suggested that HEL1 is a key factor coordinating distinct processes in the control of compound leaf development in mungbean and its related non-IRLC legumes. | Keyuan Jiao Xin Li Shihao Su Wuxiu Guo Yafang Guo Yining Guan Zhubing Hu Zhenguo Shen Da Luo | 2019 | Horticulture Research2019，6，1： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员