A SSR-based composite genetic linkage map for the cultivated peanut (<Emphasis Type="Italic">Arachis hypogaea</Emphasis> L.) genome |
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| Authors: | Yanbin Hong Xiaoping Chen Xuanqiang Liang Haiyan Liu Guiyuan Zhou Shaoxiong Li Shijie Wen C Corley Holbrook Baozhu Guo |
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| Institution: | (1) Guangdong Academy of Agricultural Sciences, Crops Research Institute, Guangzhou, PR, China;(2) US Department of Agriculture, Agricultural Research Service, Crop Protection and Management Research Unit, Tifton, GA 31793, USA;(3) Department of Plant Pathology, University of Georgia, Tifton, GA 31793, USA;(4) US Department of Agriculture, Agricultural Research Service, Crop Genetics and Breeding Research Unit, Tifton, GA 31793, USA |
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| Abstract: | Background The construction of genetic linkage maps for cultivated peanut (Arachis hypogaea L.) has and continues to be an important research goal to facilitate quantitative trait locus (QTL) analysis and gene tagging
for use in a marker-assisted selection in breeding. Even though a few maps have been developed, they were constructed using
diploid or interspecific tetraploid populations. The most recently published intra-specific map was constructed from the cross
of cultivated peanuts, in which only 135 simple sequence repeat (SSR) markers were sparsely populated in 22 linkage groups.
The more detailed linkage map with sufficient markers is necessary to be feasible for QTL identification and marker-assisted
selection. The objective of this study was to construct a genetic linkage map of cultivated peanut using simple sequence repeat
(SSR) markers derived primarily from peanut genomic sequences, expressed sequence tags (ESTs), and by "data mining" sequences
released in GenBank. |
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