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首页> 外文期刊>Forest Pathology >Gremmeniella abietina types cannot be distinguished using ascospore morphology.
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Gremmeniella abietina types cannot be distinguished using ascospore morphology.

机译：不能使用子囊孢子形态来区分Gremmeniella abietina类型。

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摘要

Twenty-one Gremmeniella abietina var. abietina type A and 12 type B samples with ripened apothecia were collected in Sweden and Finland. Morphological dimensions of the ascospores were determined with an image analyser (Leica Qwin). Measured variables included length, width, perimeter and roundness of ascospores. Variations in these variables overlapped between the two types. Type A ascospores were significantly shorter (mean length 15.8 micro m) than the type B ascospores (mean length 17.1 micro m). Type A ascospores were also significantly rounder than type B ascospores. Differences between these morphological characters were, however, too small to distinguish the types as separate taxonomical species. Round-pointed and acute ascospores were found in the same apothecium but in different asci. According to the hypervariable marker GAAA1000, both round-pointed and acute ascospores originated from the same two parents in normal segregation..
机译：二十一种格列梅氏菌在瑞典和芬兰收集了成熟的足细胞的Abietina A型和12 B型样品。用图像分析仪（Leica Qwin）测定子囊孢子的形态学尺寸。测得的变量包括子囊孢子的长度，宽度，周长和圆度。这些变量的变化在两种类型之间重叠。 A型子囊孢子（平均长度15.8微米）明显短于B型子囊孢（平均长度17.1微米）。 A型子囊孢子也比B型子囊孢子明显更圆。但是，这些形态特征之间的差异太小，无法区分作为单独的分类物种的类型。圆角和急性子囊孢子存在于相同的药皮中，但存在于不同的囊皮中。根据高变标记GAAA1000，圆角和急性子囊孢子均来自正常分离的两个亲本。

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