Selection based on meiotic behavior in Urochloa decumbens hybrids from non-shattered seed

Autor: Joana Neres da Cruz Baldissera, Andréa Beatriz Diverio Mendes, Marlon Mathias Dacal Coan, Claudete Aparecida Mangolin, Cacilda Borges do Valle, Maria Suely Pagliarini
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2020
Předmět:
Zdroj: Tropical Grasslands-Forrajes Tropicales, Vol 8, Iss 2, Pp 133-140 (2020)
Druh dokumentu: article
ISSN: 2346-3775
DOI: 10.17138/tgft(8)133-140
Popis: This study aimed to evaluate the end-products of meiosis in sexual and apomictic hybrids of Urochloa decumbens, so as to identify genotypes with good production of viable pollen for use in breeding programs to increase yields of pure viable seed and reduce degree of seed shattering. From 457 intraspecific hybrids of U. decumbens arising from crosses between 3 artificially tetraploidized sexual plants and the apomictic cultivar Basilisk, 27 hybrids from non-shattered seed were selected. Slides were prepared by smearing anthers and staining to determine the presence of abnormalities. The abnormalities found were micronuclei, microcytes and polyads. The data were compared by the Scott-Knott test at P
Databáze: Directory of Open Access Journals