Dissertation Research: Genetic basis of morphological evolution in cotton (Gossypium spp. Linnaeus)

论文研究：棉花形态进化的遗传基础林奈)从野生祖先那里驯化植物涉及到许多形式和结构的变化。在大多数情况下，这些变化的潜在遗传基础还没有得到很好的理解。棉花大约在5000年前被驯化，导致纤维特性的极大改善和产量的提高。目前尚不清楚在这一过程中棉花基因组的哪些部分发生了变化。在棉花方面，在两个不同大陆的四个不同物种中也发生了类似的转变。为了阐明驯化过程中涉及的基因变化的性质，将探索两种途径。首先，将比较野生植物和驯化植物相同的纤维发育阶段，以发现基因表达的变化模式。其次，将分析来自发育中的纤维的DNA，以确定基因数量在棉纤维发育过程中是否发生变化。这些实验将提供数据，有助于理解现代棉花作物特有的长、强、高质量纤维的发育所需的基因变化。这些信息将为植物育种者和其他对提高商业棉花产量和纺织业感兴趣的人提供新的研究途径。

Dissertation Research: Genetic basis of morphological evolution in cotton (Gossypium spp. Linnaeus)The domestication of plants from their wild ancestors involved many changes in form and structure. The underlying genetic basis of these changes is not well-understood in most cases. Cotton underwent domestication roughly 5,000 years ago, leading to greatly improved fiber properties and enhanced yield. It is not known what parts of the cotton plant's genome changed during this process. In cotton, similar transitions occurred in four separate species on two different continents. To shed light on the nature of the genetic changes involved in domestication, two avenues will be explored. First, equivalent fiber developmental stages from wild and domesticated plants will be compared to discover altered patterns of gene expression. Second, DNA from developing fibers will be analyzed to determine if the number of genes changes during cotton fiber development. The experiments will provide data that will facilitate an understanding of the genetic changes necessary for the development of the long, strong, high-quality fiber that characterizes modern cotton crops. This information will provide new avenues of research for plant breeders and others interested in enhancing commercial cotton production and the textile industry.