Extracting female inbred lines from commercial sunflower hybrids

Pesquisa Agropecuária Brasileira

Claudio Guilherme Portela De Carvalho¹  José Francisco Ferraz De Toledo¹ 

[1] ,Embrapa SojaLondrina PR

关键词: Helianthus annuus;    cytoplasmic male sterility;    fertility restoration;    plant breeding;    sunflower hybrid production;    Helianthus annuus;    macho-esterilidade citoplasmática;    restauração de fertilidade;    melhoramento de plantas;    produção de híbridos de girassol;   

DOI  :  10.1590/S0100-204X2008000900009

来源: SciELO

【 摘 要 】

The objective of this study was to obtain female inbred lines from sunflower (Helianthus annuus) hybrids. A methodology based on altering inbred lines carrying the fertility restorer gene (Rf) obtained from self pollinating hybrids into inbred lines with normal cytoplasm without the Rf gene was described. Further, derived male-sterile inbred lines were developed. The methodology was successfully used to obtain female inbreds from sunflower commercial hybrids. Although more time and labor consuming than the conventional female inbred line extraction methods, this methodology is advantageous in exploiting superior germplasms (commercial hybrids), which prompted us to develop practical procedures to allow its routinely use.

【 授权许可】

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