scholarly journals Development and validation of an SNP-based new set of markers useful for early selection for Sharka disease in apricot (P. armeniaca)

2020 ◽  
pp. 47-52
Author(s):  
P. Lambert ◽  
C. Confolent ◽  
G. Roch ◽  
N. Dlalah ◽  
A. Remay ◽  
...  
Keyword(s):  
Early Selection ◽  
Selection For ◽  
Development And Validation ◽  
Sharka Disease

scholarly journals Efficiency of early selection for rotation-aged wood quality traits in radiata pine

2007 ◽  
Vol 64 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Harry X. Wu ◽  
Mike B. Powell ◽  
Junli L. Yang ◽  
Milo Ivković ◽  
Tony A. McRae
Keyword(s):  
Wood Quality ◽  
Radiata Pine ◽  
Early Selection ◽  
Quality Traits ◽  
Selection For

scholarly journals Development and Validation of High-Resolution Melting Markers Derived from Rysto STS Markers for High-Throughput Marker-Assisted Selection of Potato Carrying Rysto

2016 ◽  
Vol 106 (11) ◽  
pp. 1366-1375 ◽  
Author(s):  
Xianzhou Nie ◽  
Darcy Sutherland ◽  
Virginia Dickison ◽  
Mathuresh Singh ◽  
Agnes M. Murphy ◽  
...  
Keyword(s):  
High Resolution ◽  
High Throughput ◽  
Marker Assisted Selection ◽  
High Resolution Melting ◽  
Chromosome Region ◽  
Sts Markers ◽  
Reverse Primer ◽  
Selection For ◽  
Development And Validation ◽  
Selection Of

Sequence analysis of the chromosome region harboring the sequence-tagged site (STS) markers YES3-3A and YES3-3B for Rysto, a gene responsible for extreme resistance to Potato virus Y (PVY) in potato, was performed in tetraploid potato ‘Barbara’ (Rrrr) and ‘AC Chaleur’ (rrrr) as well as their progeny selections. Three and two sequence variants were identified in Barbara resistant (R) selections and AC Chaleur susceptible (S) selections, respectively. Further analysis indicates that the variant with a 21-nucleotide (nt) deletion is likely the chromosome copy harboring the STS markers. Two primer pairs, one targeting the region containing a 20-nt deletion and the other targeting the region anchoring the YES3-3A reverse primer, were designed. As anticipated, pair one produced two visible fragments in Barbara-R bulk and one visible fragment in AC Chaleur-S bulk; pair two produced one visible fragment in all samples. When subjected to high-resolution melting (HRM) analysis, two distinct melting profiles for R and S samples were observed. Analysis of 147 progeny of Barbara × AC Chaleur revealed 72 and 75 progeny with R and S melting profiles, respectively, which was consistent with YES3-3A and YES3-3B assays and phenotyping analysis, thus demonstrating the potential of HRM profiles as novel molecular markers for Rysto. The efficacy of the newly developed HRM markers for high-throughput marker-assisted selection for Rysto-conferred resistance to PVY was validated further with three populations involving Barbara as the R parent.

Early selection for forcing ability in tulip (Tulipa L.) breeding

Euphytica ◽  
1983 ◽  
Vol 32 (1) ◽  
pp. 75-83 ◽  
Author(s):  
J. P. Van Eijk ◽  
S. J. Toxopeus ◽  
W. Eikelboom ◽  
L. D. Sparnaaij
Keyword(s):  
Early Selection ◽  
Selection For ◽  
Forcing Ability

Genetics of wood stiffness and its component traits inPinus radiata

2006 ◽  
Vol 36 (5) ◽  
pp. 1165-1178 ◽  
Author(s):  
Heidi S Dungey ◽  
A Colin Matheson ◽  
Dominic Kain ◽  
Robert Evans
Keyword(s):  
New Zealand ◽  
Genetic Correlations ◽  
Microfibril Angle ◽  
Early Selection ◽  
Stiffness Modulus ◽  
Wood Stiffness ◽  
South Wales ◽  
Age Related ◽  
Component Traits ◽  
Selection For

The potential for breeding Pinus radiata D. Don to improve wood stiffness (modulus of elasticity, MoE) was examined by obtaining pith-to-bark cores from trees at breast height in two independent genetic trials. The effectiveness of early selection for stiffness and indirect selection on the component traits, microfibril angle (MfA) and wood density, was determined as well as the age-related changes in the genetic variation of these traits. The first trial comprised 50 open-pollinated families in the central North Island, New Zealand. The second trial comprised 20 control-pollinated families in New South Wales, Australia. The genetic control of MfA, density, and MoE was found to be high in the corewood and moderate in the outerwood. Estimated genetic correlations suggested that early selection for most traits would be successful but could be carried out slightly earlier at the New Zealand site than at the Australian site. To maximize gain in the corewood, selection for MoE and MfA would be most effective around rings 4-8. There were no adverse correlations between MoE and MfA or density, implying that selection for MoE would also improve MfA and density.

scholarly journals Early Selection for Wound Compartmentalization Potential in Woody Plants

1984 ◽  
Vol 2 (4) ◽  
pp. 126-128
Author(s):  
Frank S. Santamour
Keyword(s):  
Woody Plants ◽  
Growing Season ◽  
Early Selection ◽  
Decayed Wood ◽  
Reasonable Amount ◽  
Controlled Potential ◽  
Xylem Tissue ◽  
Selection For

Young woody plants may be successfully screened for their genetically controlled potential to compartmentalize discolored and decayed wood associated with trunk wounds to small columns. To test woody plants for their compartmentalization potential, there should be a reasonable amount of xylem tissue, about 2 years' growth, interior to the experimentally inflicted wound and at least one full growing season should occur between the time of wounding and examination.

scholarly journals Yield components and reproductive, physiological, and root traits used in early selection for nitrogen use efficiency in corn

2018 ◽  
Vol 53 (5) ◽  
pp. 620-632
Author(s):  
Pedro Patric Pinho Morais ◽  
Massaine Bandeira e Sousa ◽  
Giovanni Galli ◽  
Luciano Rogério Braatz e Andrade ◽  
Roberto Fritsche-Neto ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Yield Components ◽  
Selection Index ◽  
Root Traits ◽  
Early Selection ◽  
Nitrogen Use ◽  
Nitrogen Levels ◽  
Differential Behavior ◽  
Use Efficiency ◽  
Selection For

Abstract: The objective of this work was to examine the possibility of using yield components and reproductive, physiological, and root traits in early selection for nitrogen use efficiency (NUE) in corn. Sixty-four inbred lines were evaluated under two nitrogen fertilization levels: ideal and low. The evaluations were performed at three phenological stages: eight fully-expanded leaves, tasseling stage, and physiological maturity. It is possible to select superior lines for NUE, but the yield components did not show differential behavior under the different nitrogen levels evaluated. Root, reproductive, and physiological traits are not promising for early selection of corn lines with high NUE. Likewise, the eight-leaves and tasseling stages were not promising for this purpose, since NUE should be estimated taking grain yield into account. However, indirect selection for NUE can be performed via number of ears or using the selection index considering number and weight of ears.

Sign in / Sign up

Export Citation Format

Share Document