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Fig. 8 | BMC Ecology and Evolution

Fig. 8

From: Evolutionary pattern of karyotypes and meiosis in pholcid spiders (Araneae: Pholcidae): implications for reconstructing chromosome evolution of araneomorph spiders

Fig. 8

Male karyotype of Cantikus sabah (Pholcinae) (a, b) and Smeringopus pallidus (Smeringopinae) (c). Based on metaphase II (c) or two sister metaphases II (a, b). Arrowhead = NOR. a Diploid karyotype, Giemsa stained. Note metacentric morphology of chromosomes. b Diploid karyotype, detection of NORs (FISH). Fifth pair bears a terminal NOR (arrowheads). In contrast to most other pholcids, centromeres are formed by a prominent AT-rich block; c Haploid karyotype, Giemsa stained. Chromosomes metacentric except for three submetacentrics (nos 5, 9, 12). Sex chromosomes show a slight positive heteropycnosis. Inset: detection of NORs (FISH); chromosomes of two pairs (nos. 1, 12) contain terminal NOR. Bar = 10 µm

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BMC Ecology and Evolution

ISSN: 2730-7182

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