Genetic parameters in a rubber tree population: heritabilities, genotype-by-environment interactions and multi-trait correlations

Silva, Guilherme Augusto Peres; Gezan, Salvador A.; Carvalho, Marcelo; Gouvêa, Lígia Regina Lima; Verardi, Cecília Khusala; Oliveira, André Luís Bombonato de; Gonçalves, Paulo de Souza

doi:10.1007/s11295-014-0766-5

Cited by 15 publications

(7 citation statements)

References 12 publications

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“…Peres et al (2014), found a mean value of of 0.31 and Verardi et al (2012) estimated a mean value of 0.41 for total solids, and for this studies these authors found high repeatability values, 0.84 (Peres et al, 2014) and 0.64 (Verardi et al, 2012). This information is useful for breeding programs that do not the necessary antiqueness to estimate h 2 as the main parameter.…”

Section: Repeatability Estimationsupporting

confidence: 58%

“…(Padilha et al, 2001) and some forestry species, because of the low costs and the valuable information that it gives for making decisions. In H. brasiliensis repeatability of yield has been considered as a useful parameter to approach to the genetic value of the rubber plantation (Verardi et al, 2012;Peres et al, 2014). In this study Total Solids (TS -it means dry rubber plus other molecules, like proteins and ashes) was used like yield variable, this character is of a polygenic nature (Priyadarshan, 2011).…”

Section: Palabras Clavementioning

confidence: 99%

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Repeatability for yield total solids in a segregating population of rubber (Hevea brasiliensis) in Colombia

Monsalve¹,

Torres²,

Arboleda³

et al. 2018

Rev. Fac. Nac. Agron. Medellín

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Rubber (Hevea brasiliensis) is a specie of late yield performance. This makes breeding programs long-term and the decisions taken are based in the base population genetic parameters. The aim of this research was to determinate a genetic potential of a rubber segregating population through the use of repeatability as a parameter, in order to make decisions to start a breeding program, with the purpose of increasing the total solids. In addition, to describe the target population and to explore the relation between total solids yield and climate variables. This research was carried out in a segregating population with 3395 trees in 12,000 m 2 divided into nine plots located in the research center El Nus of Corpoica. Ten evaluations of total solids were recorded in the period between October 2014 and September 2016. The repeatability of total solids was determined from estimation of individual and temporal environments variance using the Bayesian approach. Descriptive statistics for the total solid mean were used per plot and the correlation between total solids and climate variables were obtained. The repeatability estimate value was among 0.64 and 0.66. The plots had a total solids variation coefficient among 64.76 and 86.51%. Total solids and cumulate photosynthetic active radiation had a direct correlation (0.25) for 15 and 30 days prior period, while mean relative humidity had an inverse correlation of -0.44 and -0.42 with total solid in the same periods. There is a good probability that for this population the total solid can be inherited in a high proportion.

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Section: Repeatability Estimationsupporting

confidence: 58%

Section: Palabras Clavementioning

confidence: 99%

Repeatability for yield total solids in a segregating population of rubber (Hevea brasiliensis) in Colombia

Monsalve¹,

Torres²,

Arboleda³

et al. 2018

Rev. Fac. Nac. Agron. Medellín

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“…The environment (soil, weather and cropping systems) in central Florida (PSREU) is different than that in northern Florida (NFREC); however, there was consistency in genotype ranking for spotted wilt between these two locations. This suggests that breeders can make selections based on experiments from a single high risk environment without much loss of genetic gain (Silva et al., ). It also suggests minimal upward bias in the heritability estimates.…”

Section: Discussionmentioning

confidence: 99%

Heritability of spotted wilt resistance in a Florida‐EP™ “113”‐derived peanut (Arachis hypogaea) population

et al. 2018

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Spotted wilt, caused by tomato spotted wilt virus (TSWV), is a major disease of peanut (Arachis hypogaea) in the south‐eastern United States. Cultivar resistance is the most important factor in disease control. However, spotted wilt resistance in current cultivars still carries risk in the absence of other practices when disease is severe. In contrast, a newly developed cultivar, Florida‐EP™ “113,” has demonstrated excellent resistance even when spotted wilt is severe. Information on heritability of this resistance can help breeders better utilize it in breeding. F2‐derived populations from the cross Florida‐EP™ “113”/Georgia Valencia were developed and tested in field experiments in Florida from 2012 to 2014. Disease symptoms were evaluated visually, and the frequency of TSWV infection was measured by ImmunoStrip®. Heritability estimated from ImmunoStrip® was higher (0.66) compared to visual ratings (0.48). Genetic correlations among evaluation methods (rA = 0.92–0.99) and environments (rB = 0.86–0.99) were high. These results indicate that resistance in Florida‐EP™ “113” is highly heritable and that selection in a high disease risk environment is feasible without significant erosion of genetic gain.

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“…In the face of rapid climate change, it is becoming more important to construct and allocate deployment populations to environments where they will be well adapted (Rehfeldt et al 2006;Wang et al 2010). Further, a detailed knowledge of genetic control of breeding objective and selection criteria traits (Wu et al 2008), levels of genotype by environmental interactions (hereafter referred to as G × E), and genetic correlations between traits is required to implement an effective breeding strategy (Wu et al 2007;Silva et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Estimation of genetic parameters, provenance performances, and genotype by environment interactions for growth and stiffness in lodgepole pine (Pinus contorta)

Hayatgheibi

Fries

Kroon

et al. 2018

Scandinavian Journal of Forest Research

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Genetic parameters, performance of provenances, and genotype by environment interaction (G × E) for diameter at breast height (DBH), survival, and modulus of elasticity of time-of-flight (MOE tof) (an indirect measure of stiffness), were investigated in six lodgepole pine progeny trials, aged 33-36 years, within three breeding zones in northern Sweden. Provenances of Yukon origin had the highest growth but lowest stiffness at higher latitude, while those of British Columbia (BC) origin grew faster at lower latitudes and had highest stiffness within zone 5. Combined-site heritability estimates ranged from 0.09 to 0.19 for DBH, from 0.19 to 0.27 for MOE tof , and from 0.13 to 0.26 for survival. Type-B genetic correlations (r b) were generally high for all studied traits, except for DBH and survival in zone 4 (r b = 0.74 and 0.40, respectively) and for MOE tof in zone 2 (r b = 0.46). On the basis of the results obtained in this study, G × E for stiffness in northern Sweden and unfavourable growth-stiffness genetic correlation should be considered in selective breeding programmes of lodgepole pine. To achieve the highest stiffness for lodgepole pine, provenances of Yukon origin should be planted at lower latitudes and those of BC origin should be planted at lower elevations within the tested breeding zones.

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Genetic parameters in a rubber tree population: heritabilities, genotype-by-environment interactions and multi-trait correlations

Cited by 15 publications

References 12 publications

Repeatability for yield total solids in a segregating population of rubber (Hevea brasiliensis) in Colombia

Repeatability for yield total solids in a segregating population of rubber (Hevea brasiliensis) in Colombia

Heritability of spotted wilt resistance in a Florida‐EP™ “113”‐derived peanut (Arachis hypogaea) population

Estimation of genetic parameters, provenance performances, and genotype by environment interactions for growth and stiffness in lodgepole pine (Pinus contorta)

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