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首页> 外文期刊>Genetic Resources and Crop Evolution >Suitability of existing Musa morphological descriptors to characterize East African highland 'matooke' bananas
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Suitability of existing Musa morphological descriptors to characterize East African highland 'matooke' bananas

机译：适用于现有的Musa形态学描述符，以表征东非高地'Matooke'香蕉

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摘要

Morphological traits are commonly used for characterizing plant genetic resources. Germplasm characterization should be based on distinctly identifiable, stable and heritable traits that are expressed consistently and are easy to distinguish by the human eye. Characterization and documentation of a representative sample of East African highland bananas (Lujugira-Mutika subgroup) was carried out following an internationally accepted standard protocol for bananas. Eleven cultivars were characterized using an existing set of minimum descriptors (31 qualitative and quantitative traits) with the aim of determining stable descriptors and the ability of these descriptors to distinguish among East African highland banana cultivars. There was variation in stability of these descriptors within cultivars and across the 11 cultivars. Only 10 (32%) out of 31 descriptors studied were stable in the 11 cultivars. However, they had similar scores and therefore are not suitable to distinguish between cultivars within this group. Nonetheless, these 10 descriptors may be useful for distinguishing the East African highland bananas as a group from other groups of bananas. A few descriptors were unique to the cultivar 'Tereza' and may be used to distinguish this cultivar from other 'matooke' cultivars. None of the quantitative descriptors were stable.
机译：形态学性状通常用于表征植物遗传资源。种质表征应基于始终如一地表达的明显可识别，稳定和遗传的性状，并且易于通过人眼区分。在国际公认的香蕉标准议定书后，对东非高地香蕉（Lujugira-Mutika亚组）的特征和文件进行了特征和文件。使用现有的最小描述符（31种定性和定量性状）的目的是确定稳定描述符和这些描述符在东非高原香蕉品种中的能力的目的的特征。品种和11种品种中这些描述素的稳定性有变化。在31种描述符中只有10个（32％）在11种栽培品种中稳定。然而，它们具有相似的评分，因此不适合区分该组内的品种。尽管如此，这10个描述符可能有助于区分东非高地香蕉作为来自其他香蕉群体的群体。一些描述符对品种“Tereza”是独一无二的，并且可以用来将这种品种与其他“Matooke”的品种区分开来。没有定量描述符稳定。

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