2020
DOI: 10.1590/1678-4685-gmb-2019-0068
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Abstract: The genome size varies widely among angiosperms but only a few clades present huge variation at a low phylogenetic level. Among diploid species of the genus Cuscuta the genome size increased enormously in at least two independent lineages: in species of subgenus Monogynella and in at least one species (C. indecora) of the subgenus Grammica. Curiously, the independent events lead to similar karyotypes, with 2n = 30 mostly metacentric chromosomes. In this paper we compared the patterns of heterochromatic bands a… Show more

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Cited by 5 publications
(9 citation statements)
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References 54 publications
(69 reference statements)
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“…In the species with a higher number of CMA + /DAPI - or DAPI + /CMA - bands, they are localised in interstitial regions. There is no evidence that this banding pattern is different for each subgenus and there may be similar patterns between different subgenera (Ibiapino et al ., 2020). In the three species of the subgenus Pachystigma analysed here, the multiple CMA/DAPI bands were mainly present at the largest pairs.…”
Section: Discussionmentioning
confidence: 99%
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“…In the species with a higher number of CMA + /DAPI - or DAPI + /CMA - bands, they are localised in interstitial regions. There is no evidence that this banding pattern is different for each subgenus and there may be similar patterns between different subgenera (Ibiapino et al ., 2020). In the three species of the subgenus Pachystigma analysed here, the multiple CMA/DAPI bands were mainly present at the largest pairs.…”
Section: Discussionmentioning
confidence: 99%
“…Pachystigma . Indeed, repetitive DNA in Cuscuta is involved in the expansion of the genome, causing an increase in chromosomes, such as in C. monogyna and C. indecora (Ibiapino et al ., 2020; Neumann et al ., 2021). In these two cases, however, chromosomes increased proportionally in size, maintaining karyotype symmetry, and resulting in similar karyotypes, although C. monogyna and C. indecora belong to different subgenera ( Monogynella and Grammica , respectively).…”
Section: Discussionmentioning
confidence: 99%
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