Correction to: Identification of passion fruit (Passiflora edulis) chromosomes using BAC-FISH

Sader, Mariela Analía; Dias, Yhanndra; Costa, Zirlane Portugal; Munhoz, Carla de Freitas; Penha, Helen Alves; Bergès, Hélène; Vieira, Maria Lúcia Carneiro; Pedrosa‐Harand, Andrea

doi:10.1007/s10577-020-09633-2

Cited by 3 publications

(3 citation statements)

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“…Here we have observed that Ty1/copia-Angela and Ty3/gypsy-Tekay retroelements were dispersed in P. quadrangularis and P. cincinnata chromosomes, although showing more intense labelling at proximal regions. An uneven dispersed distribution was also observed in P. edulis and two other species of the subgenus Passiflora, where terminal or subterminal regions of the chromosome arms are gene-rich, and the proximal regions are gene-poor and consist of dispersed repetitive sequences (Pamponét et al 2019;Sader et al 2019b;Stack et al 2009;Dias et al 2020). This distribution pattern suggest that gene-rich regions, and probably recombination, is more evenly distributed in P. organensis, except in pericentromeric regions, while higher in chromosomal ends of larger genome species, such as P. quadrangularis, P. cincinnata, and P.…”

Section: Discussionmentioning

confidence: 73%

“…In our study, we have seen that some Tekay clusters were present in the last common ancestral among the three species. Apart from methodological differences (we are investigating clusters of TEs, not individual elements), a possible explanation for this discrepancy could be that the authors analysed TEs from gene-rich regions, which are located at chromosomal ends (Sader et al 2019b). In our case, we used elements from the most abundant clusters that may have accumulated in the pericentromeric regions for longer time.…”

Section: Discussionmentioning

confidence: 99%

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Large vs small genomes in Passiflora: the influence of the mobilome and the satellitome

Sader

Vaio

Cauz-Santos

et al. 2021

Planta

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Large vs small genomes in Passiflora: the influence of the mobilome and the satellitome

Sader

Vaio

Cauz-Santos

et al. 2021

Planta

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“…In situ localization of the retrotransposons in pericentromeric regions or dispersed throughout the chromosomes is a common feature of plant genomes of similar sizes, small and large, respectively (Miller et al 1998;Cheng and Murata 2003;Nagaki et al 2004¸ Neumann et al 2011 (Pamponét et al 2019;Sader et al 2019b;Stack et al 2009;Dias et al 2020). This distribution pattern suggest that gene-rich regions, and probably recombination, is more evenly distributed in P. organensis, except in pericentromeric regions, while higher in chromosomal ends of larger genome species, such as P. quadrangularis, P. cincinnata, and P.…”

Section: Such Differences In Percentage Of Te Explains Most Of the DImentioning

confidence: 99%

Large vs small genomes inPassiflora: the influence of the mobilome and the satellitome

Sader

Vaio

Cauz-Santos

et al. 2020

Preprint

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Repetitive sequences are ubiquitous and fast-evolving elements responsible for size variation and large-scale organization of plant genomes. Within Passiflora genus, a ten-fold variation in genome size, not attributed to polyploidy, is known. Here, we applied a combined in silico and cytological approach to study the organization and diversification of repetitive elements in three species of these genera representing its known range in genome size variation. Sequences were classified in terms of type and repetitiveness and the most abundant were mapped to chromosomes. We identified Long Terminal Repeat (LTR) retrotransposons as the most abundant elements in the three genomes, showing a considerable variation among species. Satellite DNAs (satDNAs) were less representative, but highly diverse between subgenera. Our results clearly confirm that the largest genome species (Passiflora quadrangularis) presents a higher accumulation of repetitive DNA sequences, specially Angela and Tekay elements, making up most of its genome. Passiflora cincinnata, with intermediate genome and from the same subgenus, showed similarity with P. quadrangularis regarding the families of repetitive DNA sequences, but in different proportions. On the other hand, Passiflora organensis, the smallest genome, from a different subgenus, presented greater diversity and the highest proportion of satDNA. Altogether, our data indicate that while large genome evolve by an accumulation of retrotransponsons, small genomes most evolved by diversification of different repeat types, particularly satDNAs.

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Cytogenetic characterization and karyotype evolution in six Macroptilium species (Leguminosae)

Barros

Montenegro

Gomes

et al. 2023

Genome

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Macroptilium (Benth.) Urb. is a neotropical legume genus from the subtribe Phaseolinae. The investigated species present a stable chromosome number (2n = 22), but differ in their karyotype formulae, suggesting the presence of chromosome rearrangements. In this work, we comparatively analysed the karyotypes of six species (M. atropurpureum, M. bracteatum, M. erythroloma, M. gracile, M. lathyroides and M. martii) from the two main clades that form the genus. Heterochromatin distribution was investigated with CMA/DAPI staining and fluorescent in situ hybridization (FISH) was used to localise the 5S and 35S ribosomal DNA (rDNA) sites. Single copy BACs (Bacterial Artificial Chromosomes) previously mapped in the related genera Phaseolus L. and Vigna Savi were used to establish chromosome orthologies and to investigate possible rearrangements among species. CMA+/DAPI- bands were observed, mostly associated with rDNA sites. Additional weak, pericentromeric bands were observed on several chromosomes. Although karyotypes were similar, species could be differentiated mainly by the number and position of the 5S and 35S rDNA sites. BAC markers demonstrated conserved synteny of the main rDNA sites on orthologous chromosomes 6 and 10, as previously observed for Phaseolus and Vigna. The karyotypes of the six species could be differentiated, shedding light on its karyotype evolution.

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Correction to: Identification of passion fruit (Passiflora edulis) chromosomes using BAC-FISH

Abstract: was originally published with incorrect values in Figure 4. The correct Figure 4 is presented below.

Cited by 3 publications

References 0 publications

Large vs small genomes in Passiflora: the influence of the mobilome and the satellitome

Large vs small genomes in Passiflora: the influence of the mobilome and the satellitome

Large vs small genomes inPassiflora: the influence of the mobilome and the satellitome

Cytogenetic characterization and karyotype evolution in six Macroptilium species (Leguminosae)

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