Diversification and population structure in common beans (Phaseolus vulgaris L.).
Diversification and population structure in common beans (Phaseolus vulgaris L.).
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DOI：
10.1371/journal.pone.0049488
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Cortés AJ
中科院分区：
文献类型：
--
作者：
Blair MW;Soler A;Cortés AJ
农作物和地方品种的野生种质是植物育种、等位基因和基因组合保存的宝贵遗传资源。栽培菜豆的主要基因库包括菜豆的野生种质。这些是相同的物种驯化，因此很容易与栽培品种杂交。野生菜豆和地方品种的分子标记鉴定对于这些重要遗传资源的合理利用和保护具有重要意义。本研究的目的是评估收集野生菜豆与荧光微卫星或简单的序列重复标记，并确定人口结构与所有已知的种族栽培豆类相结合。36个标记和104个野生基因型的组合在每个标记的平均等位基因数方面的标记多样性很高（13），这与606个栽培基因型中发现的每个标记的平均14个等位基因相似。野生豆类的多样性似乎比栽培豆类的每一个基因型的基础上。在野生豆的结构分析中，确定了五个群体或genepools对应的地理范围的片段，包括中美洲（墨西哥），危地马拉，哥伦比亚，厄瓜多尔-秘鲁北部和安第斯山脉（阿根廷，玻利维亚和南部秘鲁）。对野生和栽培种质的综合分析表明，这些基因组的第一个和最后一个与相同名称的栽培基因组有关，倒数第二个被发现是不同的，但不是祖先的。危地马拉的基因库非常新颖，可能与危地马拉种族的品种有关，而哥伦比亚人口也是独特的。结果表明，地理隔离，创始人效应或自然选择可能创造了不同的半离散种群的野生豆类和多驯化和基因渗入参与创造的多样性栽培豆类。
Wild accessions of crops and landraces are valuable genetic resources for plant breeding and for conserving alleles and gene combinations in planta. The primary genepool of cultivated common beans includes wild accessions of Phaseolus vulgaris. These are of the same species as the domesticates and therefore are easily crossable with cultivated accessions. Molecular marker assessment of wild beans and landraces is important for the proper utilization and conservation of these important genetic resources. The goal of this research was to evaluate a collection of wild beans with fluorescent microsatellite or simple sequence repeat markers and to determine the population structure in combination with cultivated beans of all known races. Marker diversity in terms of average number of alleles per marker was high (13) for the combination of 36 markers and 104 wild genotypes that was similar to the average of 14 alleles per marker found for the 606 cultivated genotypes. Diversity in wild beans appears to be somewhat higher than in cultivated beans on a per genotype basis. Five populations or genepools were identified in structure analysis of the wild beans corresponding to segments of the geographical range, including Mesoamerican (Mexican), Guatemalan, Colombian, Ecuadorian-northern Peruvian and Andean (Argentina, Bolivia and Southern Peru). The combined analysis of wild and cultivated accessions showed that the first and last of these genepools were related to the cultivated genepools of the same names and the penultimate was found to be distinct but not ancestral to the others. The Guatemalan genepool was very novel and perhaps related to cultivars of race Guatemala, while the Colombian population was also distinct. Results suggest geographic isolation, founder effects or natural selection could have created the different semi-discrete populations of wild beans and that multiple domestications and introgression were involved in creating the diversity of cultivated beans.
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分子生态学和在野生和培养的共同豆类中与干旱相关的ASR基因多态性中的选择（叶状豆类叶）。
影响因子：
2.9
作者：
Cortés AJ;Chavarro MC;Madriñán S;This D;Blair MW
通讯作者：
Blair MW
影响因子：
2.3
作者：
Beebe, S;Rengifo, J;Tohme, J
通讯作者：
Tohme, J
影响因子：
2.6
作者：
DEBOUCK, DG;TORO, O;GEPTS, P
通讯作者：
GEPTS, P
影响因子：
2
作者：
Galvan, M. Z.;Menendez-Sevillano, M. C.;Balatti, P. A.
通讯作者：
Balatti, P. A.
影响因子：
3.1
作者：
ANDERSON, JA;CHURCHILL, GA;SORRELLS, ME
通讯作者：
SORRELLS, ME