U.S.-Mexico Cooperative Research: Molecular Basis and Evolution of the Natural Homeotic Phenotype of Lancandonia Schismatica

美国-墨西哥合作研究：Lancandonia Schismmatica 自然同源异型表型的分子基础和进化

• 批准号: 9724731
• 负责人: Elliot Meyerowitz
• 金额: $ 4.03万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9724731&HistoricalAwards=false
• 关键词: U.S.; Mexico; Cooperative; Research; Molecular

9724731 Meyerowitz This U.S-Mexico award will support Dr. Elliot Meyerowitz of the California Institute of Technology in collaboration with Dr. Elena Alvarez Buylla of the Instituto de Ecologia of the Universidad Nacional Autonoma de Mexico (UNAM). The researchers intend to study the molecular basis and evolution of the plant, Lacandonia schismatica. Lacandonia is a unique endemic plant from Chiapas, Mexico, whose flower is the only known example of a functional spatial inversion of the reproductive whorls, that is, stamens in the central whorl and carpels in the third one. Dr. Meyerowitz has been a leader in developing models for the molecular mechanisms of flower development, models which have been corroborated by studies in other flowering plants, including Arabidopsis. The researchers now plan to establish the phylogenetic relationships by using rDNA sequences as sources of characters, to clone and structurally characterize the genes similar to the ABC genes of Arabidopsis and to test in other ways the similarity or differences in the genetic control of flower development in the two genera of plants. Because of its functional uniqueness, Lacandonia provides the necessary exception to the pattern of flowers in angiosperms for a rigorous testing of molecular models. The two laboratories have complementary skills: the U.S. lab provides the expertise in molecular technology, while the Mexican lab brings to the collaboration its expertise in phylogenetic and population biology. ***

9724731 Meyerowitz这个美墨合作奖项将支持加州理工学院的Elliot Meyerowitz博士与墨西哥国立自治大学生态研究所的Elena Alvarez Buylla博士合作。研究人员打算研究这种植物的分子基础和进化。Lacandonia是墨西哥恰帕斯的一种独特的特有植物，其花是已知的唯一生殖轮生的功能性空间倒置的例子，即中央轮生的雄蕊和第三轮的心皮。梅耶罗维茨博士一直是花发育分子机制模型的领导者，该模型已被包括拟南芥在内的其他开花植物的研究所证实。研究人员现在计划通过使用rDNA序列作为特征来源来建立系统发育关系，克隆和结构特征类似于拟南芥ABC基因的基因，并以其他方式测试这两个属植物在花发育基因控制方面的相似性或差异。由于其功能的独特性，Lacandonia为被子植物的花模式提供了必要的例外，以便对分子模型进行严格的测试。这两个实验室有互补的技能：美国实验室提供分子技术方面的专业知识，而墨西哥实验室则将其在系统发育和种群生物学方面的专业知识带到合作中。***