Domestication to crop improvement: genetic resources for Sorghum and Saccharum (Andropogoneae).
Domestication to crop improvement: genetic resources for Sorghum and Saccharum (Andropogoneae).
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DOI：
10.1093/aob/mcm192
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发表时间：
2007-11
期刊：
影响因子：
4.2
通讯作者：
Lee LS
中科院分区：
文献类型：
--
作者：
Dillon SL;Shapter FM;Henry RJ;Cordeiro G;Izquierdo L;Lee LS
高粱和甘蔗都是禾本科植物族的成员，在栽培植物中是彼此最近的亲戚。两者都是相对较新的驯化和相对较少的遗传潜力，这些分类群和它们的野生亲属已被捕获的育种计划的日期。本文对这两个相关物种的遗传资源及其在作物改良中的应用进行了综述。高粱的基因组最近被测序，为我们对禾本科植物基因组进化和高粱内丰富多样性的认识提供了极大的推动。双色分类群对高粱属的分子分析已经确定了S.具有新的性状、胚乳结构和组成的双色，可用于扩大栽培基因库。突变群体（包括TILLING群体）为该物种的遗传资源提供了有用的补充。甘蔗是一种复杂的多倍体，每个基因的拷贝数都很大且可变。甘蔗的野生近缘种代表了用于甘蔗改良的遗传多样性库。已经开发了用于在这种遗传复杂的作物中进行基因或等位基因拷贝数的定量分子分析的技术。甘蔗中的SNP发现和作图已经通过用于甘蔗中的ecoTILLING的高通量技术的发展而被推进。甘蔗基因组的遗传连锁图正在改进，以用于育种选择。利用分子工具和对这些基因组的更深入了解，将更多不同的种质纳入驯化基因库，将加速高粱和甘蔗的改良。
Both sorghum (Sorghum bicolor) and sugarcane (Saccharum officinarum) are members of the Andropogoneae tribe in the Poaceae and are each other's closest relatives amongst cultivated plants. Both are relatively recent domesticates and comparatively little of the genetic potential of these taxa and their wild relatives has been captured by breeding programmes to date. This review assesses the genetic gains made by plant breeders since domestication and the progress in the characterization of genetic resources and their utilization in crop improvement for these two related species. The genome of sorghum has recently been sequenced providing a great boost to our knowledge of the evolution of grass genomes and the wealth of diversity within S. bicolor taxa. Molecular analysis of the Sorghum genus has identified close relatives of S. bicolor with novel traits, endosperm structure and composition that may be used to expand the cultivated gene pool. Mutant populations (including TILLING populations) provide a useful addition to genetic resources for this species. Sugarcane is a complex polyploid with a large and variable number of copies of each gene. The wild relatives of sugarcane represent a reservoir of genetic diversity for use in sugarcane improvement. Techniques for quantitative molecular analysis of gene or allele copy number in this genetically complex crop have been developed. SNP discovery and mapping in sugarcane has been advanced by the development of high-throughput techniques for ecoTILLING in sugarcane. Genetic linkage maps of the sugarcane genome are being improved for use in breeding selection. The improvement of both sorghum and sugarcane will be accelerated by the incorporation of more diverse germplasm into the domesticated gene pools using molecular tools and the improved knowledge of these genomes.
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影响因子：
2
作者：
Cai, Q;Aitken, K;McIntyre, CL
通讯作者：
McIntyre, CL
影响因子：
2.9
作者：
Ahmadian, A;Gharizadeh, B;Lundeberg, J
通讯作者：
Lundeberg, J
影响因子：
3.1
作者：
Chen, X;Cho, YG;McCouch, SR
通讯作者：
McCouch, SR
影响因子：
5.2
作者：
Cordeiro, GM;Taylor, GO;Henry, RJ
通讯作者：
Henry, RJ
影响因子：
7.2
作者：
Caldwell, DG;McCallum, N;Waugh, R
通讯作者：
Waugh, R