Musa Genomics Workshop to be held in Arlington, Virginia, Summer 2001

Musa 基因组学研讨会将于 2001 年夏季在弗吉尼亚州阿灵顿举行

• 批准号: 0128821
• 负责人: Andrew Paterson
• 金额: $ 2.05万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128821&HistoricalAwards=false
• 关键词: Musa; Genomics; Workshop; held; Arlington

Musa Genomics Workshop, Arlington VA. July 17-19 2001A Musa Genomic Consortium has been formed within the framework of the Global Program for Musa Improvement. Deciphering the banana genome is an enormous task that will require participation and collaboration of scientists around the world. The Consortium will bring together and enhance the combined expertise of the different participating laboratories. This meeting has been organised to develop the strategy for the Consortium and to plan its implementation. The Musa genome offers exciting new perspectives in studying genomic biodiversity of monocots. It has a small genome (500 to 600 Mb - only 25% larger than rice) that is highly tractable to complete functional and sequence analysis. Cultivated varieties of Musa are sterile clones that have been propagated vegetatively for thousands of years, while fertile wild diploid equivalents have been actively evolving for the same period in the same environment, ranking Musa as a unique model to study plant evolution. Sterile and fertile forms have also co-evolved with most of the Musa pathogens, creating an excellent system in which to study plant/pathogen evolution. Musa was the first species where a pararetrovirus was shown to be integrated into a plant genome, with the capacity to give rise to episomal banana streak badnavirus. Understanding the mechanism behind this phenomenon may lead to important applications, such as gene targeting. Musa is among few plant species with bi-parental cytoplasmic inheritance: paternal inheritance of mitochondria and maternal inheritance of chloroplasts. Variability in ploidy levels in Musa offers a new opportunity to gain insight to the greater-than-additive gains in crop productivity that often accompany polyploidy. Polyploids such as cotton and sugarcane contain only one type of polyploidy within the taxon, whereas Musa includes several types of autopolyploids (AAA, AAAA, AAAAAA), and allopolyploids (AAB, ABB, AABB, AAAB) in addition to diploid M. acuminata (AA) and M. balbisiana (BB) and AB hybrids.

Musa Genomics Workshop，弗吉尼亚州阿灵顿。2001年7月17日至19日，在全球香蕉改良计划的框架内成立了一个香蕉基因组联盟。破译香蕉基因组是一项艰巨的任务，需要全世界科学家的参与和合作。该联合会将汇集和加强不同参与实验室的综合专门知识。组织这次会议的目的是制定联盟的战略并规划其实施。芭蕉基因组为研究单子叶植物基因组多样性提供了令人兴奋的新视角。它有一个小的基因组（500至600 Mb -仅比水稻大25%），非常容易完成功能和序列分析。香蕉的栽培品种是不育的无性系，已经无性繁殖了数千年，而可育的野生二倍体等价物在同一时期在相同的环境中积极进化，将香蕉列为研究植物进化的独特模式。不育和可育形式也与大多数芭蕉病原体共同进化，创造了一个研究植物/病原体进化的极好系统。香蕉是第一个被证明将副黄病毒整合到植物基因组中的物种，具有产生附加体香蕉条纹病毒的能力。了解这种现象背后的机制可能会导致重要的应用，如基因靶向。香蕉是少数具有双亲细胞质遗传的植物物种之一：线粒体的父系遗传和叶绿体的母系遗传。香蕉倍性水平的变异性提供了一个新的机会，以了解作物生产力的比加性增益，往往伴随着多倍体。棉花和甘蔗等多倍体在分类单元内仅包含一种类型的多倍体，而芭蕉属除了二倍体M外，还包括几种类型的同源多倍体（AAA，AAAA，AAAAAA）和异源多倍体（AAB，ABB，AABB，AAAB）。acuminata（AA）和M. balbisiana（BB）和AB杂种。