Quantitative trait locus analysis of grape weight and soluble solid content.
A grapevine hybrid population was derived from a crossing of the early-maturing female parent cultivar '87-1' and the late-maturing male parent cultivar '9-22'. A total of 149 plants were selected from the hybrid population as the mapping population, and after sequence-related amplified polymorphism and simple-sequence repeat marker analysis were conducted we constructed molecular genetic maps of the parents. The molecular linkage map of '87-1' had 19 linkage groups that contained 188 markers, with an average interval of 5.7 cM and a total distance of 1074.5 cM; the '9-22' map had 19 linkage groups that contained 175 markers, with an average interval of 7.8 cM and a total distance of 1100.2 cM. The molecular linkage map of both parents had 19 linkage groups that contained 251 markers, with an average interval of 5.0 cM and a total distance of 1264.2 cM. We used the interval mapping method to conduct a quantitative trait locus (QTL) analysis of grape weight and soluble solid content of the mapping population. Six QTLs were related to grape weight, and the average contribution to the phenotypic variance was between 11.3 and 33.0%. Seven QTLs were related to soluble solid content, and the average contribution to the phenotypic variance was between 15.7 and 55.8%.
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
Y H
YH
Zhao
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China guoyinshan77@126.com.
Y S
YS
Guo
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
H
H
Lin
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
Z D
ZD
Liu
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
H F
HF
Ma
College of Horticulture, Shenyang Agricultural University, Shenyang, China.
X W
XW
Guo
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
K
K
Li
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
X X
XX
Yang
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
Z Z
ZZ
Niu
Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
G G
GG
Shi
D002874:Chromosome Mapping; D008040:Genetic Linkage; D005819:Genetic Markers; D018895:Microsatellite Repeats; D010641:Phenotype; D040641:Quantitative Trait Loci; D019655:Quantitative Trait, Heritable; D027843:Vitis / Q000235:genetics*
D005819:Genetic Markers