Sex determination in papaya: Current status and perspectives

Ávila‐Hernández, José Guadalupe; Cárdenas-Aquino, María del Rosario; Camas-Reyes, Alberto; Martı́nez-Antonio, Agustino

doi:10.1016/j.plantsci.2023.111814

Cited by 9 publications

(2 citation statements)

References 83 publications

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“…Considering the previous genomic and cytogenomic data, we hypothesize that C. papaya sex chromosomes differ in several DNA sequences 31 , including svp-like and mdar 4 genes. Based on this, we aimed to map the serk 2 , svp-like and mdar 4 sequences in C. papaya mitotic chromosomes.…”

Section: Introductionmentioning

confidence: 90%

Carica papaya L. sex chromosome review and physical mapping of the serk 2, svp-like and mdar 4 sequences

Dornela,

Soares,

Silva

et al. 2024

Sci Rep

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Physical mapping evidences the chromosome organization and structure. Despite the data about plant cytogenomics, physical mapping has been conducted from single-copy and/or low-copy genes for few species. Carica papaya cytogenomics has been accomplished from BAC-FISH and repeatome sequences. We aimed to map the serk 2, svp-like and mdar 4 sequences in C. papaya. The sequences were amplified and the amplicons sequenced, showing similarity in relation to serk 2, svp-like and mdar 4 genes. Carica papaya diploidy was confirmed and the mitotic chromosomes characterized. The chromosome 1 exhibited the secondary constriction pericentromeric to the centromere of the long arm. So, we concluded that it is the sex chromosomes. serk 2 was mapped in the long arm interstitial portion of the sex chromosomes, and the interphase nuclei showed two fluorescence signals. Considering these results and the sequencing data from the C. papaya sex chromosomes, svp-like and mdar 4 genes were mapped in the interstitial region of the sex chromosome long arm. Both sequences showed only one fluorescence signal in the interphase nuclei. The procedure adopted here can be reproduced for other single-copy and/or low-copy genes, allowing the construction of cytogenetic maps. In addition, we revisited the cytogenomics data about C. papaya sex chromosomes, presenting a revised point of view about the structure and evolution to these chromosomes.

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Section: Introductionmentioning

confidence: 90%

Carica papaya L. sex chromosome review and physical mapping of the serk 2, svp-like and mdar 4 sequences

Dornela,

Soares,

Silva

et al. 2024

Sci Rep

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“…Genes related to sex have been identified in several dioecious plants, but in, e.g., papaya (Carica papaya L.), factors such as the environment, hormones, and genetic and epigenetic background can apparently also affect sex expression [30]. Nevertheless, molecular markers have been developed and are now being successfully used for early sex determination in papaya and other crops.…”

Section: Sex Determinationmentioning

confidence: 99%

The Systematics, Reproductive Biology, Biochemistry, and Breeding of Sea Buckthorn—A Review

Nybom,

Ruan,

Rumpunen

2023

Genes

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Both the fruit flesh and seeds of sea buckthorn have multiple uses for medicinal and culinary purposes, including the valuable market for supplementary health foods. Bioactive compounds, such as essential amino acids, vitamins B, C, and E, carotenoids, polyphenols, ursolic acid, unsaturated fatty acids, and other active substances, are now being analyzed in detail for their medicinal properties. Domestication with commercial orchards and processing plants is undertaken in many countries, but there is a large need for improved plant material with high yield, tolerance to environmental stress, diseases, and pests, suitability for efficient harvesting methods, and high contents of compounds that have medicinal and/or culinary values. Applied breeding is based mainly on directed crosses between different subspecies of Hippophae rhamnoides. DNA markers have been applied to analyses of systematics and population genetics as well as for the discrimination of cultivars, but very few DNA markers have as yet been developed for use in selection and breeding. Several key genes in important metabolic pathways have, however, been identified, and four genomes have recently been sequenced.

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Extraction of benzyl isothiocyanate from formosa papaya seeds (Carica papaya Linn) and evaluation of biological properties

Feltes,

Fischer,

Junges

et al. 2024

Food Bioscience

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Sex determination in papaya: Current status and perspectives

Cited by 9 publications

References 83 publications

Carica papaya L. sex chromosome review and physical mapping of the serk 2, svp-like and mdar 4 sequences

Carica papaya L. sex chromosome review and physical mapping of the serk 2, svp-like and mdar 4 sequences

The Systematics, Reproductive Biology, Biochemistry, and Breeding of Sea Buckthorn—A Review

Extraction of benzyl isothiocyanate from formosa papaya seeds (Carica papaya Linn) and evaluation of biological properties

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