Molecular Insights on the Domestication of Barley (Hordeum vulgare L.)

IF 6 2区 生物学 Q1 PLANT SCIENCES Critical Reviews in Plant Sciences Pub Date : 2019-07-04 DOI:10.1080/07352689.2019.1658856
Y. Wang, H. Ye, L. Liu, Jiahui Wu, W. Ru, Genlou Sun
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引用次数: 9

Abstract

Abstract Barley, Hordeum vulgare L., was first domesticated at about 8000 BCE. Throughout the domestication process, selection in the wild species resulted in the loss of seed shattering, minimization of seed dormancy, and an increase in both seed size and number. Three critical domestication traits were a non-brittle rachis, a six-rowed spike, and a naked caryopsis. After primary domestication, some adaptive traits subsequently developed, such as shortened seed dormancy and early flowering time, which are probably associated with genetic mutations affecting protein structure and function. Multiple genetic pathways formed a complex regulatory network due to interactions between the pathways. Recent studies on barley domestication genes have provided a framework for understanding how these traits evolved and have revealed that drastic changes in gene function occurred during domestication. In this paper, we review the current molecular insights into H. vulgare domestication and discuss the domestication genes that underlie morphological trait changes in the evolutionary history of barley.
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大麦(Hordeum vulgare L.)的分子驯化
大麦,Hordeum vulgare L.,于公元前8000年左右首次被驯化。在整个驯化过程中,野生物种的选择导致了种子破碎的损失,种子休眠的最小化,以及种子大小和数量的增加。三个关键的驯化特征是非脆性轴、六棱穗和裸颖果。经过初步驯化,随后形成了一些适应性性状,如种子休眠期缩短和开花时间提前,这可能与影响蛋白质结构和功能的遗传突变有关。由于多种遗传途径之间的相互作用,形成了一个复杂的调控网络。最近对大麦驯化基因的研究为理解这些性状是如何进化的提供了一个框架,并揭示了基因功能在驯化过程中发生的剧烈变化。在本文中,我们回顾了目前对大麦驯化的分子见解,并讨论了大麦进化史上形态性状变化的驯化基因。
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来源期刊
CiteScore
12.90
自引率
1.40%
发文量
15
审稿时长
>12 weeks
期刊介绍: Critical Reviews in Plant Sciences focuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics, classical botany, and ecology, to practical agricultural applications. Articles in the journal provide an up-to-date literature base for researchers and students, pointing the way towards future research needs. The journal is also a significant source of credible, objective information to aid decision makers at all levels.
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