Comparative Genomics in the Triticeae
Comparative Genomics in the Triticeae
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DOI：
10.1007/978-0-387-77489-3_17
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发表时间：
2009-01-01
期刊：
影响因子：
--
通讯作者：
Salse, Jerome
中科院分区：
文献类型：
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作者：
Feuillet, Catherine;Salse, Jerome
禾本科植物的基因组在大小、倍性水平和染色体数目方面差异很大。其中，小麦族物种（小麦，大麦，黑麦）具有一些最大和复杂的基因组。十年前，水稻、玉米、高粱、大麦和小麦之间的比较作图研究开创了植物比较基因组学领域。他们表明遗传标记和基因的线性顺序（共线性）是非常保守的，为加速图位克隆开辟了道路，并将水稻定义为禾本科植物的模型。最近，BAC文库和大量基因组序列的可用性，包括水稻基因组的完成，允许微共线性研究，揭示了草基因组之间的重排，并提供了一些见解的机制，在进化过程中塑造了他们的基因组。本文综述了近十年来禾本科植物的比较基因组学研究，特别强调了小麦和大麦的基因组。
The genomes of grasses are very different in terms of size, ploidy level and chromosome number. Among them, the Triticeae species (wheat, barley, rye) have some of the largest and complex genomes. Comparative mapping studies between rice, maize, sorghum, barley and wheat have pioneered the field of plant comparative genomics a decade ago. They showed that the linear order (colinearity) of genetic markers and genes is very well conserved opening the way to accelerated map-based cloning and defining rice as a model for grasses. More recently, the availability of BAC libraries and large sets of genomic sequences including the completion of the rice genome have permitted micro-colinearity studies that revealed rearrangements between the grass genomes and provided some insights into mechanisms that have shaped their genome during evolution. This review summarizes a decade of comparative genomics Studies In grasses with a special emphasis on the wheat and barley genomes.