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首页> 外文期刊>Genetic Resources and Crop Evolution >Diversity of Ullucus tuberosus (Basellaceae) in the Colombian Andes and notes on ulluco domestication based on morphological and molecular data.
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Diversity of Ullucus tuberosus (Basellaceae) in the Colombian Andes and notes on ulluco domestication based on morphological and molecular data.

机译：哥伦比亚安第斯山脉的 ll蒲（Basellaceae）的多样性，并基于形态学和分子数据对ulluco驯化进行了记录。

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Ullucus tuberosus (common name 'ulluco') is a popular tuber crop of Andean highlands. Until now attention has been focused on ulluco from Bolivia, Peru and Ecuador, but little is known about its diversity in Colombia. Thirty-six accessions of cultivated ulluco preserved in the Gene Bank of the Universidad Nacional de Colombia were studied to assess the genetic diversity and spatial genetic structure of Colombian ulluco. We used morphological characters, molecular markers (total proteins, isozymes and RAPDs) and ploidy level. High morphological variability, especially for tuber shape and colour characters, was found. Eight accessions from north-east Colombian Andes showed some typical character-states of wild ulluco, suggesting that they could be partially domesticated forms. Genetic analysis using RAPD markers indicated that these accessions were very similar to other cultivated ullucos belonging to the same region. The regional structure observed in isozyme and RAPD dendrograms was confirmed by AMOVA results (52.6% among-region variation) and the spatial correlogram, showing the presence of two gene pools of ulluco in Colombia. Our results and the accumulated data suggest that ulluco was introduced to Colombia at least two times. Initially, semi-domesticated forms would have come from the central Andes to north-east Colombian Andes, where the native inhabitants would have completed the domestication process. Again, fully domesticated ullucos might have been introduced to south-west Colombian Andes.
机译：tube蒲（俗称“ ulluco”）是安第斯高原的一种流行块茎作物。到目前为止，注意力一直集中在来自玻利维亚，秘鲁和厄瓜多尔的ulluco，但对其在哥伦比亚的多样性知之甚少。研究了保存在哥伦比亚国立大学基因库中的36种人工栽培的uluco菌种，以评估哥伦比亚uluco菌的遗传多样性和空间遗传结构。我们使用了形态特征，分子标记（总蛋白，同工酶和RAPD）和倍性水平。发现高形态变异性，特别是块茎形状和颜色特征。来自哥伦比亚东北部安第斯山脉的八份种质表现出一些典型的野生木偶状态，表明它们可能是部分驯化的形式。使用RAPD标记进行的遗传分析表明，这些种质与属于同一地区的其他栽培的ullucos非常相似。通过AMOVA结果（区域间差异为52.6％）和空间相关图，证实了在同工酶和RAPD树状图中观察到的区域结构，表明在哥伦比亚存在两个ulluco基因库。我们的结果和积累的数据表明，ulluco至少两次被引入哥伦比亚。最初，半驯养的形式是从安第斯山脉中部到哥伦比亚东北部的安第斯山脉，在那里原住民将完成驯化过程。同样，完全驯化的ullucos可能已被引入哥伦比亚西南安第斯山脉。

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