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

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A Correction to this article was published on 19 May 2020

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Abstract

Passiflora edulis, the yellow passion fruit, is the main crop from the Passiflora genus, which comprises 525 species with its diversity center in South America. Genetic maps and a BAC (bacterial artificial chromosome) genomic library are available, but the nine chromosome pairs of similar size and morphology (2n = 18) hamper chromosome identification, leading to different proposed karyotypes. Thus, the aim of this study was to establish chromosome-specific markers for the yellow passion fruit using single-copy and repetitive sequences as probes in fluorescent in situ hybridizations (FISH) to allow chromosome identification and future integration with whole genome data. Thirty-six BAC clones harboring genes and three retrotransposons (Ty1-copy, Ty3-gypsy, and LINE) were selected. Twelve BACs exhibited a dispersed pattern similar to that revealed by retroelements, and one exhibited subtelomeric distribution. Twelve clones showed unique signals in terminal or subterminal regions of the chromosomes, allowing their genes to be anchored to six chromosome pairs that can be identified with single-copy markers. The markers developed herein will provide an important tool for genomic and evolutionary studies in the Passiflora genus.

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Change history

  • 19 May 2020

    The article “Identification of passion fruit (<Emphasis Type="Italic">Passiflora edulis</Emphasis>) chromosomes using BAC-FISH,” written by Mariela A. Sader, Yhanndra Dias, Zirlane P. da Costa, Carla Munhoz, Helen Penha, Hélène Bergès, Maria Lucia C. Vieira, and Andrea Pedrosa-Harand, was originally published with incorrect values in Figure 4.

Abbreviations

BACs:

Bacterial artificial chromosomes

FISH:

Fluorescent in situ hybridizations

NORs:

Active nucleolar organizer regions

CMA:

Chromomycin A3

DAPI:

4′,6-Diamidino-2-phenlindol

rDNA:

Ribosomal DNA

TEs:

Transposable elements

SSRs:

Microsatellite sequences

PCR:

Polymerase chain reaction

SSC:

Saline–sodium citrate buffer

SDS:

Sodium dodecyl sulfate

Cy3-dUTP:

5-Amino-propargyl-2′-deoxyuridine 5′-triphosphate coupled to red cyanine fluorescent dye

Alexa:

Alexa Fluor 488

FITC:

Fluorescein isothiocyanate

BSA:

Bovine serum albumin

LINE:

Long interspersed nuclear element

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Acknowledgments

We thank Mr. Steve Simmons for proofreading the manuscript.

Funding

The authors received financial support from CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico). Scholarships from CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) were awarded to MA Sader, ZP Costa, and A. Pedrosa-Harand. This study was supported in part by the Coordenacão de Aperfeicoamento de Pessoal de Nível Superior - Brasil (CAPES, Finance Code 001), and Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP grant no. 2014/25215-2).

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Authors and Affiliations

Authors

Contributions

MAS and APH conceived and designed the research. HB, HP, and MLCV contributed to BAC library, plant material, and bioinformatic data. MAS and YD conducted the experiments. CM, MAS, YD, and ZPC analyzed the data. MAS and APH wrote the manuscript. All authors read and approved the manuscript.

Corresponding author

Correspondence to Andrea Pedrosa-Harand.

Additional information

Responsible Editor:Jiming Jiang

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Figure S1

Fluorescent in situ hybridization to P. edulis chromosomes. (a) BAC Pe134H15 (red); (b) Pe164A12 (red) and 35S rDNA (green); (c) BAC Pe173B16 (green) and Pe164M13 (red); (d) BAC Pe195F4 (red) and 35S rDNA (green); (e) BAC Pe173B16 (red) and 35S rDNA (green). Chromosomes were counterstained with DAPI, are visualized in grey and indicated by number. BACs were labeled with Cy3-dUTP and pseudocolored. Bar = 5 μm. (PNG 8848 kb)

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Sader, M.A., Dias, Y., Costa, Z.P. et al. Identification of passion fruit (Passiflora edulis) chromosomes using BAC-FISH. Chromosome Res 27, 299–311 (2019). https://doi.org/10.1007/s10577-019-09614-0

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  • DOI: https://doi.org/10.1007/s10577-019-09614-0

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