Age trends in genetic parameters for growth performance across country-wide provenances of the iconic conifer tree Araucaria angustifolia show strong prospects for systematic breeding and early selection

2021 ◽  
Vol 501 ◽  
pp. 119671
Author(s):  
Rafael T. Resende ◽  
Pedro Italo T. Silva ◽  
Orzenil B. Silva-Junior ◽  
Miguel L. Menezes Freitas ◽  
Alexandre M. Sebbenn ◽  
...  
Keyword(s):  
Growth Performance ◽  
Genetic Parameters ◽  
Early Selection ◽  
Araucaria Angustifolia ◽  
Conifer Tree ◽  
Age Trends

Age trends of genetic parameters of spiral grain in hybrid larch F1 and implications for efficiency of early selection

2006 ◽  
Vol 52 (2) ◽  
pp. 101-106 ◽  
Author(s):  
Takaaki Fujimoto ◽  
Hisashi Akutsu ◽  
Kazuhito Kita ◽  
Kazuko Uchiyama ◽  
Makoto Kuromaru ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Early Selection ◽  
Hybrid Larch ◽  
Spiral Grain ◽  
Age Trends

scholarly journals Estimate of genetic parameters and predicted gains with early selection of physic nut families

2012 ◽  
Vol 36 (2) ◽  
pp. 163-170 ◽  
Author(s):  
Bruno Galvêas Laviola ◽  
Alexandre Alonso Alves ◽  
Fábio de Lima Gurgel ◽  
Tatiana Barbosa Rosado ◽  
Rhayanne Dias Costa ◽  
...  
Keyword(s):  
Grain Yield ◽  
Genetic Parameters ◽  
Genetic Variance ◽  
Additive Genetic Variance ◽  
Biodiesel Production ◽  
Early Selection ◽  
Physic Nut ◽  
Genetic Gains ◽  
Canopy Volume ◽  
Selection Of

An initial evaluation of early selection of physic nut genotypes based on phenotypic data is presented. In order to predict the genetic gains with early selection, genetic parameters, e.g. additive genetic variance, were first obtained for grain yield along with other numerous traits. The results demonstrated that additive genetic variance exists not only for grain yield, which is considered to be the most important trait for oil and biodiesel production, but also for numerous other traits. The predicted genetic gains for grain yield, considering the selection of the 30, 20, 10 and 5 best families in the second crop year are respectively, 40.47, 48.43, 61.78 and 70.28%. With the selection of highly yielding physic nut genotypes indirectly genotypes with enhanced volume would be also selected, because yield exhibits moderate to high genetic correlations with height e canopy volume. The results here presented demonstrate the potential of the population gathered in the Brazilian physic nut germplasm bank for genetic breeding purposes and that superior physic nut families can be selected with high accuracy based on the evaluation of its second crop.

scholarly journals A 3K Axiom SNP array from a transcriptome-wide SNP resource sheds new light on the genetic diversity and structure of the iconic subtropical conifer tree Araucaria angustifolia (Bert.) Kuntze

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0230404
Author(s):  
Pedro Italo T. Silva ◽  
Orzenil B. Silva-Junior ◽  
Lucileide V. Resende ◽  
Valderes A. Sousa ◽  
Ananda V. Aguiar ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Snp Array ◽  
Araucaria Angustifolia ◽  
Genetic Diversity And Structure ◽  
Conifer Tree

Age trends in the genetic parameters of wood density and the relationship with growth rates in hybrid larch (Larix gmelinii var. japonica × L. kaempferi) F1

2006 ◽  
Vol 11 (3) ◽  
pp. 157-163 ◽  
Author(s):  
Takaaki Fujimoto ◽  
Kazuhito Kita ◽  
Kazuko Uchiyama ◽  
Makoto Kuromaru ◽  
Hisashi Akutsu ◽  
...  
Keyword(s):  
Wood Density ◽  
Growth Rates ◽  
Genetic Parameters ◽  
Larix Gmelinii ◽  
Hybrid Larch ◽  
Age Trends ◽  
The Relationship

Age trends in genetic parameters for growth and wood density in Eucalyptus globulus

2009 ◽  
Vol 6 (2) ◽  
pp. 179-193 ◽  
Author(s):  
Desmond J. Stackpole ◽  
René E. Vaillancourt ◽  
Marcelo de Aguigar ◽  
Brad M. Potts
Keyword(s):  
Wood Density ◽  
Eucalyptus Globulus ◽  
Genetic Parameters ◽  
Age Trends

scholarly journals Age-related Trends in Genetic Parameters for Jack Pine and Their Implications for Early Selection

2007 ◽  
Vol 56 (1-6) ◽  
pp. 242-252 ◽  
Author(s):  
Y. H. Weng ◽  
K. J. Tosh ◽  
Y. S. Park ◽  
M. S. Fullarton
Keyword(s):  
Genetic Parameters ◽  
Genetic Correlations ◽  
Jack Pine ◽  
Single Site ◽  
Early Selection ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Age Related ◽  
Different Ages ◽  
Rotation Age

Abstract Trends in genetic parameters for height growth of jack pine (Pinus banksiana Lamb.) were examined over three series of family tests throughout New Brunswick. Data were analyzed for each site and across sites within each series. Although individual narrow sense heritability estimates from single-site analyses varied substantially from site to site and showed no consistent age-related pattern, the estimates from across-site analyses showed an increasing trend to age 20. Similar as individual narrow sense heritability, the coefficient of additive genetic variance estimated from single site showed more variation than those estimated from across site analyses. Age-age (type-a) genetic correlations for height were high and could be well predicted by a LAR2 model, where LAR is the natural logarithm of the ratio between two ages at assessment. Type-b genetic correlations were high and of similar magnitude at different ages. Genetic correlations between height at different ages and volume at one-half rotation age were generally high. Taking the volume at one-half rotation age as the target trait, the selection for target trait from early selection at ages 5~7 could be more efficient per year than direct selection.

Sign in / Sign up

Export Citation Format

Share Document