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用于六倍体小麦及其二级和三级基因库的高密度单核苷酸多态性基因分型阵列

High-density SNP genotyping array for hexaploid wheat and its secondary and tertiary gene pool.

作者信息

Winfield Mark O, Allen Alexandra M, Burridge Amanda J, Barker Gary L A, Benbow Harriet R, Wilkinson Paul A, Coghill Jane, Waterfall Christy, Davassi Alessandro, Scopes Geoff, Pirani Ali, Webster Teresa, Brew Fiona, Bloor Claire, King Julie, West Claire, Griffiths Simon, King Ian, Bentley Alison R, Edwards Keith J

机构信息

Life Sciences, University of Bristol, Bristol, UK.

Affymetrix UK Ltd, High Wycombe, UK.

出版信息

Plant Biotechnol J. 2016 May;14(5):1195-206. doi: 10.1111/pbi.12485. Epub 2015 Oct 15.

DOI:10.1111/pbi.12485
PMID:26466852
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4950041/
Abstract

In wheat, a lack of genetic diversity between breeding lines has been recognized as a significant block to future yield increases. Species belonging to bread wheat's secondary and tertiary gene pools harbour a much greater level of genetic variability, and are an important source of genes to broaden its genetic base. Introgression of novel genes from progenitors and related species has been widely employed to improve the agronomic characteristics of hexaploid wheat, but this approach has been hampered by a lack of markers that can be used to track introduced chromosome segments. Here, we describe the identification of a large number of single nucleotide polymorphisms that can be used to genotype hexaploid wheat and to identify and track introgressions from a variety of sources. We have validated these markers using an ultra-high-density Axiom(®) genotyping array to characterize a range of diploid, tetraploid and hexaploid wheat accessions and wheat relatives. To facilitate the use of these, both the markers and the associated sequence and genotype information have been made available through an interactive web site.

摘要

在小麦中，育种品系间缺乏遗传多样性已被视为未来产量提高的重大障碍。属于面包小麦二级和三级基因库的物种具有更高水平的遗传变异性，是拓宽其遗传基础的重要基因来源。从祖先和相关物种中导入新基因已被广泛用于改善六倍体小麦的农艺性状，但这种方法因缺乏可用于追踪导入染色体片段的标记而受到阻碍。在此，我们描述了大量单核苷酸多态性的鉴定，这些多态性可用于对六倍体小麦进行基因分型，并识别和追踪来自各种来源的基因渗入。我们使用超高密度Axiom(®)基因分型阵列验证了这些标记，以表征一系列二倍体、四倍体和六倍体小麦种质以及小麦近缘种。为便于使用这些标记，标记以及相关的序列和基因型信息已通过一个交互式网站提供。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/d69363f29fc1/PBI-14-1195-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/3ac2aea00f9f/PBI-14-1195-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/9bccd20cb3eb/PBI-14-1195-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/f1019fcd8161/PBI-14-1195-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/b9b0da84b18e/PBI-14-1195-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/d69363f29fc1/PBI-14-1195-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/3ac2aea00f9f/PBI-14-1195-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/9bccd20cb3eb/PBI-14-1195-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/f1019fcd8161/PBI-14-1195-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/b9b0da84b18e/PBI-14-1195-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef4f/11388964/d69363f29fc1/PBI-14-1195-g003.jpg

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