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1.
Methods Mol Biol ; 2287: 257-266, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34270035

RESUMO

Doubled haploid (DH) plant production belongs to modern biotechnology methods of plant breeding. The main advantage of DH plant production methods is the development of genetically homozygous lines in one generation, whilst in conventional breeding programmes, the development of homozygous lines requires more generations. The present chapter describes an efficient protocol for DH plant production in spelt wheat genotypes using in vitro anther culture.


Assuntos
Flores/crescimento & desenvolvimento , Melhoramento Vegetal/métodos , Técnicas de Cultura de Tecidos/métodos , Triticum/crescimento & desenvolvimento , Flores/genética , Haploidia , Técnicas In Vitro/métodos , Pólen/genética , Pólen/crescimento & desenvolvimento , Triticum/genética
2.
Plants (Basel) ; 8(10)2019 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-31652667

RESUMO

The efficiency of in vitro anther culture was screened in a full diallel population of four spelt wheat genotypes and ten F1 hybrids. Genotype dependency was observed based on the data of embryo-like structures (ELS), green-, albino plantlets. In the diallel population and ten F1 hybrids, the green plantlets production ranged from 13.75 to 85.00 and from 6.30 to 51.00, respectively. The anther culture-derived plants of F1 hybrids were grown up in the nursery. At the harvest, 436 spontaneous doubled haploid (DH) plants were identified among the 1535 anther culture-derived transplanted and grown up individual plants. The mean of spontaneous rediploidization was 28.4% which ranged from 9.76% to 54.24%. In two consecutive years, the agronomic values of 'Tonkoly.pop1' advanced line were compared with seven DH lines of 'Tonkoly.pop1' in the nursery. The DH lines achieved competitive values in comparison with 'Tonkoly.pop1' advanced line based on the 11 measured parameters (heading date, plant height, yield, hardness, width and length of seed, TKW, hulling yield, flour yield, protein and wet gluten content). These observations presage the efficient utilization of anther culture in spelt wheat breeding.

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