Unconventional vegetables collected in Brazil: chromosome number and description of nuclear DNA content

AUTOR(ES)

Silva, Luis Felipe Lima e, Techio, Vânia Helena, Resende, Luciane Vilela, Braz, Guilherme Tomaz, Resende, Kátia Ferreira Marques de, Samartini, Carolina Queiroz

FONTE

Crop Breed. Appl. Biotechnol.

DATA DE PUBLICAÇÃO

2017-12

RESUMO

Abstract The aim of this study was to perform chromosome counts and nuclear DNA quantification of the unconventional vegetables species: bertalha (Basella alba L.), vinagreira verde (Hibiscus sabdariffa L.), azedinha (Rumex acetosa L.), peixinho (Stachys byzantina K. Koch), and capuchinha (Tropaeolum majus L.). Metaphase chromosomes were obtained from the pre-treatment of root meristem with 8-hydroxyquinoline or colchicine and lides were prepared by the flame-drying technique and stained with 5% Giemsa. DNA quantification was performed by flow cytometry. Chromosome number and DNA content (pg) estimated for each species were: Rumex acetosa: 2n=2x=14 and 7.04 pg; Basella alba: 2n=2x=44 and 7.05 pg; Tropaeolum majus: 2n=2x=28 and 2.08 pg; Stachys byzantine: 2n=2x=30 and 1.54 pg, and Hibiscus sabdariffa: 2n=4x=72 and 5.12 pg.

Documentos Relacionados

• Tanaidacea from Brazil: III. new records and description of a new species collected from REVIZEE-NE Program
• The relationship of DNA content to nuclear and chromosome volumes and to radiosensitivity (LD50).
• Carotene and provitamin A content of vegetables sold in Viçosa, MG, Brazil, during spring and winter
• Colletotrichum isolates related to Anthracnose of cashew trees in Brazil: morphological and molecular description using LSU rDNA sequences
• Description and chromosome number of a species of Pseudonannolene Silvestri (Arthropoda, Diplopoda, Pseudonannolenidae)