Construction of a high-density genetic linkage map and QTL analysis of morphological traits in an F1 Malusdomestica × Malus baccata hybrid

2021 ◽  
Author(s):  
Huacheng Cai ◽  
Qian Wang ◽  
Jingdong Gao ◽  
Chunyan Li ◽  
Xuemei Du ◽  
...  
Keyword(s):  
Linkage Map ◽  
Qtl Analysis ◽  
Genetic Linkage ◽  
Morphological Traits ◽  
Genetic Linkage Map ◽  
High Density ◽  
Malus Baccata

scholarly journals Construction of a high-density genetic linkage map and QTL analysis for hazelnut breeding

2018 ◽  
pp. 25-30
Author(s):  
D. Torello Marinoni ◽  
N. Valentini ◽  
E. Portis ◽  
A. Acquadro ◽  
C. Beltramo ◽  
...  
Keyword(s):  
Linkage Map ◽  
Qtl Analysis ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
High Density

Construction of a high-density linkage map and QTL analysis for pistil abortion in apricot (Prunus armeniaca L.)

2019 ◽  
Vol 99 (5) ◽  
pp. 599-610
Author(s):  
Junhuan Zhang ◽  
Haoyuan Sun ◽  
Li Yang ◽  
Fengchao Jiang ◽  
Meiling Zhang ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Map ◽  
Qtl Analysis ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Prunus Armeniaca ◽  
High Density ◽  
Pistil Abortion ◽  
Genomic Study ◽  
Prunus Armeniaca L

A high-density genetic map of apricot (Prunus armeniaca L.) was constructed using an F1 population constructed by crossing two main Chinese cultivars ‘Chuanzhihong’ and ‘Luotuohuang’, coupled with a recently developed reduced representation library (RRL) sequencing. The average sequencing depth was 38.97 in ‘Chuanzhihong’ (female parent), 33.05 in ‘Luotuohuang’ (male parent), and 8.91 in each progeny. Based on the sequencing data, 12 451 polymorphic markers were developed and used in the construction of the genetic linkage map. The final map of apricot comprised eight linkage groups, including 1991 markers, and covered 886.25 cM of the total map length. The average distance between adjacent markers was narrowed to 0.46 cM. Gaps larger than 5 cM only accounted for <0.33%. To our knowledge, this map is the densest genetic linkage map that is currently available for apricot research. It is a valuable linkage map for quantitative trait loci (QTLs) identification of important agronomic traits. Moreover, the high marker density and well-ordered markers that this linkage map provides will be useful for molecular breeding of apricot as well. In this study, we applied this map in the QTL analysis of an important agronomic trait, pistil abortion. Several QTLs were detected and mapped respectively to the middle regions of LG5 (51.005∼59.4 cM) and LG6 (72.884∼76.562 cM), with nine SLAF markers closely linked to pistil abortion. The high-density genetic map and QTLs detected in this study will facilitate marker-assisted breeding and apricot genomic study.

Construction of a high‐density genetic linkage map and identification of QTLs for main agronomic traits of tetraploid hybrid crested wheatgrass

2020 ◽  
Vol 66 (3) ◽  
pp. 161-173 ◽  
Author(s):  
Xiaoxia Yu ◽  
Yanhong Ma ◽  
Zhiyan Jiang ◽  
Yue Shi ◽  
Dongsheng Yang ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Agronomic Traits ◽  
High Density ◽  
Crested Wheatgrass ◽  
Tetraploid Hybrid
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