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Karyotype studies on grape phylloxera (Daktulosphaira vitifoliae FITCH)

机译:葡萄根瘤(Daktulosphaira vitifoliae FITCH)的核型研究

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摘要

A cytogenetic technique was developed to produce suitable chromosome spreads for phylloxera kayotype analysis. The karyotype for pathogenetic phylloxera was 2 n=10. Karyotypes from haploid sex cells were found to vary between n=5 and n=6, The latter possibly indicating an aneuploidic aberration. Tetra-and polypolid cells were detected in somatic trophocytes. Preparation of Phylloxera sex and somatic cells for chromosomal analysis reported here enables the study of genetic variation on a chromosomal scale.
机译:开发了一种细胞遗传学技术以产生合适的染色体展布用于根瘤蚜的核型分析。致病性根瘤蚜的核型为2 n = 10。发现来自单倍体性细胞的核型在n = 5和n = 6之间变化,后者可能表明非整倍性像差。在体性滋养细胞中检测到四聚和多聚细胞。此处报道的制备用于进行染色体分析的毛草属和体细胞的研究使得能够在染色体规模上研究遗传变异。

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