CHROMOSOME-NUMBERS IN THE APHIDIDAE AND THEIR TAXONOMIC SIGNIFICANCE
CHROMOSOME-NUMBERS IN THE APHIDIDAE AND THEIR TAXONOMIC SIGNIFICANCE
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DOI：
10.1111/j.1365-3113.1980.tb00393.x
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发表时间：
1980-01-01
影响因子：
4.8
通讯作者：
BLACKMAN, RL
中科院分区：
文献类型：
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作者：
BLACKMAN, RL
二倍体雌性染色体数目列出了180种以前没有核型的蚜虫。这份清单包括了几个蚜虫部落(Tramini，Greenideini，Anomalaphidini，Nipponaphidini)的第一条染色体记录。讨论了染色体数目在不同系统水平上的变异。通常，核型在一个属内是特别稳定的，但也有显著的例外(例如，文冠目)，其中染色体数量的显著进化增加是由于常染色体的分离而几乎没有伴随的形态变化。在几个属中，总染色体形态上的差异对分类学家是有用的。种内核型变异在蚜虫中相对常见，在部分或完全放弃生命周期的有性阶段而倾向于永久生殖的物种和群体中，结构杂合性的例子尤其多。
Diploid female chromosome numbers are listed for 180 aphid species not previously karyotyped. The list includes the 1st chromosome records for several aphid tribes (Tramini, Greenideini, Anomalaphidini, Nipponaphidini). Variation in chromosome number at different systematic levels is discussed. Usually the karyotype is particularly stable within a genus, but there are notable exceptions (e.g., Amphorophora) where a considerable evolutionary increase in chromosome number has occurred by autosome dissociation with little accompanying morphological change. In several genera, differences in gross chromosome morphology can be useful to the taxonomist. Within-species karyotype variation is relatively common in aphids, and instances of structural heterozygosity are particularly numerous in species and groups which have partially or completely abandoned the sexual phase of the life cycle in favor of permanent thelytoky.