High-yield hybrid breeding of Camellia oleifolia based on ISSR molecular markers.
BMC Plant Biol
; 24(1): 517, 2024 Jun 08.
Article
em En
| MEDLINE
| ID: mdl-38851667
ABSTRACT
BACKGROUND:
C. Oleifera is among the world's largest four woody plants known for their edible oil production, yet the contribution rate of improved varieties is less than 20%. The species traditional breeding is lengthy cycle (20-30 years), occupation of land resources, high labor cost, and low accuracy and efficiency, which can be enhanced by molecular marker-assisted selection. However, the lack of high-quality molecular markers hinders the species genetic analysis and molecular breeding.RESULTS:
Through quantitative traits characterization, genetic diversity assessment, and association studies, we generated a selection population with wide genetic diversity, and identified five excellent high-yield parental combinations associated with four reliable high-yield ISSR markers. Early selection criteria were determined based on kernel fresh weight and cultivated 1-year seedling height, aided by the identification of these 4 ISSR markers. Specific assignment of selected individuals as paternal and maternal parents was made to capitalize on their unique attributes.CONCLUSIONS:
Our results indicated that molecular markers-assisted breeding can effectively shorten, enhance selection accuracy and efficiency and facilitate the development of a new breeding system for C. oleifera.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Camellia
/
Melhoramento Vegetal
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China