形态差异分析是确定生态型分化和研究遗传变异的基本手段之一。
The analysis of morphological variation is the one of basic methods that identify ecotype differentiation and genetic variation study.
鸡种间存在较大的遗传分化，16.7%的遗传变异源于品种间的差异。
Considerable breed differentiation was observed and 16.7% of the total genetic variation came from breed differences.
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