Cucumis
Cucumis
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DOI：
10.1007/978-3-642-20450-0_6
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发表时间：
2011-01-01
期刊：
影响因子：
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通讯作者：
Zhou, Xiao-Hui
中科院分区：
文献类型：
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作者：
Chen, Jin-Feng;Zhou, Xiao-Hui
黄瓜属包括约33种，在热带和南部非洲有一个主要的本地多样性中心。它包括一些重要的商业和广泛种植的蔬菜，如黄瓜和甜瓜。黄瓜野生种是黄瓜和甜瓜遗传改良的潜在有用基因储存库。这些野生品种具有广泛的遗传基础，具有抗病、抗虫和抗非生物胁迫等有价值的特性，而这些特性在黄瓜和甜瓜中是不存在的。尽管它们很重要，但利用这一野生种群的步伐却相当缓慢。除了它们与栽培物种的杂交不亲和问题外，关于这些野生近缘种的各个方面的信息也缺乏。然而，野生黄瓜与栽培黄瓜（Cucumis sativusL.）的首次成功种间杂交为深入了解野生黄瓜提供了新的机会。本章首次对野生黄瓜的分类、形态、起源、分布、细胞学、进化与系统发育、基因组学以及在黄瓜改良中的应用等方面进行了全面的介绍。并提出了今后进一步开发利用这些重要野生近缘种的目标。
The genusCucumiscomprises about 33 species with a major native diverisity center in tropical and southern Africa. It includes some commercially important and widely grown vegetables such as cucumber and melon. The Wild species ofCucumisis a reservoir of potentially useful genes for genetic improvement of cucumber and melon. These Wild species represent a broad genetic base of valuable characters, such as resistance to diseases, pests, and abiotic stress, which are not present in cucumber and melon. In spite of their importance, pace of utilization of this wild group has been rather slow. In addition to their cross-incompatibility problems with cultivated species, there is a lack of information on various aspects of these wild relatives. However, the first successful interpecific hybridization between wild speciesCucumis hystrixand cultivated cucumber (Cucumis sativusL.) provided a new opportunity to get insight into the wild species. In this chapter, a comprehensive description on various aspects of wildCucumisspecies including taxonomy, morphology, origin, distribution, cytology, evolution and phylogenetics, genomics, as well as the utilization in cucumber improvement are presented for the first time. Future objectives are also proposed for further exploitation and utilization of these important wild relatives.