QTL analysis of an advanced backcross of Lycopersicon peruvianum to the cultivated tomato and comparisons with QTLs found in other wild species
QTL analysis of an advanced backcross of Lycopersicon peruvianum to the cultivated tomato and comparisons with QTLs found in other wild species
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DOI：
10.1007/s001220050639
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发表时间：
1997-10-01
影响因子：
5.4
通讯作者：
Tanksley, SD
中科院分区：
文献类型：
--
作者：
Fulton, TM;BeckBunn, T;Tanksley, SD
一个BC 3群体先前从番茄的野生近缘种秘鲁番茄（Lycopersicon peruvianum）回交到栽培品种L.分析了番茄的QTL。在全球四个地点对大约200个BC 4家庭的35个性状进行了评分。其中29个性状共检测到166个QTL。对于这29个性状中的一半以上，检测到至少1个QTL，尽管野生亲本的表型较差，但野生等位基因的存在与农艺学有益效果相关。在BC 2、BC 3和BC 4世代均能检测到8个影响果实重量的QTL，支持这些QTL的真实性。将本研究中发现的QTL与涉及其他两个野生种的研究中发现的QTL进行了比较;结果表明，虽然其中一些QTL可以被推定为等位基因，但本研究中检测到的大多数QTL是以前未发现的。
A BC3 population previously developed from a backcross of Lycopersicon peruvianum, a wild relative of tomato, into the cultivated variety L. esculentum was analyzed for QTLs. Approximately 200 BC4 families were scored for 35 traits in four locations worldwide. One hundred and sixty-six QTLs were detected for 29 of those traits. For more than half of those 29 traits at least 1 QTL was detected for which the presence of the wild allele was associated with an agronomically beneficial effect despite the inferior phenotype of the wild parent. Eight QTLs for fruit weight could be followed through the BC2, BC3, and BC4, generations, supporting the authenticity of these QTLs. Comparisons were made between the QTLs found in this study and those found in studies involving two other wild species; the results showed that while some of these QTLs can be presumed to be allelic, most of the QTLs detected in this study are ones not previously discovered.