Fecha/hora: 31/05/2024 23:21:31

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 25/02/2021
Fecha de la última actualización: | 25/02/2021
Autoria: | DINI, M.; RASEIRA, M. DO C. B.; SCARIOTTO, S.; MARCHI, P. M.; MELLO-FARIAS, P.
Afiliación: | MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas, Capão do Leão/RS, Brazil; M.C.B. RASEIRA, Embrapa Clima Temperado, Pelotas, Rio Grande do Sul, Brazil; S. SCARIOTTO, Universidade Tecnológica Federal do Paraná, Pato Branco, Paraná, Brazil; P.M. MARCHI, Universidade Federal de Pelotas, Capão do Leão/RS, Brazil; P. MELLO-FARIAS, Universidade Federal de Pelotas, Capão do Leão/RS, Brazil.
Título: | Peach phenological characters: heritability, maternal effect and correlation with brown rot.
Año de publicación: | 2021
Fuente/Imprenta: | Genetics and Molecular Research, 2021, Volume 20, Issue 1, Article number gmr18684, Pages 1-12. OPEN ACCESS. DOI: https://doi.org/10.4238/gmr18684
ISSN: | 1676-5680
DOI: | 10.4238/gmr18684
Idioma: | Inglés

Notas:

Article history: Received November 19, 2020; Accepted December 15, 2020; Published January 31, 2021.
This study was partially funded by the Agencia Nacional de Investigación e Innovación -Uruguay (ANII) in the first year and by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) in the second and third yeasr. The authors thank Embrapa Clima Temperado and all its staff, especially Everton Pederzolli and Gilberto Kuhn for their assistance in the experiments.

Contenido:

ABSTRACT.
Peach is a temperate fruit species that is cultivated under various edaphoclimatic conditions all over the world. In Brazil, in the early 1950s, peaches were planted only in São Paulo state and in the Southern states, and the harvest period was restricted to 15 days. Currently, mainly due to peach breeding programs, it is cultivated in subtropical areas and even in high altitude tropical areas, with a harvest period of over 100 days. Knowledge of genetic, phenotypic and environmental parameters that influence characters of economic importance is crucial for guiding breeding programs. The objectives of this study were to estimate the heritability of phenological characters, to evaluate their distribution within populations, to test the possible existence of maternal effect and to evaluate the relationship of these traits with brown rot incidence (Monilinia fructicola). The study was performed in Pelotas, RS, Brazil during 2015-2016 to 2017-2018 seasons. Sixteen first generation (F1) progenies were evaluated, 10 of them being reciprocal crosses. All genotypes were cultivated in the same area, under the same cultural practices (without fungicide application). Full bloom was considered when more than 50% of flowers were open, and the harvest, when more than 10 fruits reached commercial maturity, the fruit development period being calculated by the difference between full bloom and harvest dates. Brown rot incidence was estimated by the percentage of fruits with symptoms. Broad-sense heritability estimates for full bloom date, harvest date, and fruit development period were high (95 to 98%), and narrow-sense heritabilities were medium to high (65 to 72%). A segregation study of these traits suggests a maternal effect on their heritability, mainly for full bloom and harvest date. The three phenological characters were significantly correlated, and only harvest date had a negative and significant correlation (-0.12) with brown rot incidence. © FUNPEC-RP.

Palabras-Clave: | Monilinia fructicola; Progeny segregation.
Thesagro: | PRUNUS PERSICA.
Categoría del tema: | F30 Genética vegetal y fitomejoramiento

URL:

http://www.ainfo.inia.uy/digital/bitstream/item/15063/1/Dini-et-al.-Peach-phenological-characters-GMR-2021.pdf
https://www.geneticsmr.com/sites/default/files/articles/year2021/vol20-1/pdf/gmr18684_-_peach-phenological-characters-heritability-maternal-effect-and-correlation-brown-rot.pdf

Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102504-1) - PXI - AP - DD - PP/GMR/2020 -  -  - DIS