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Reference Title QTL mapping for economic traits based on a dense genetic map
of cotton with PCR-based markers using the interspecific
cross of Gossypium hirsutum x Gossypium barbadense
Journal Euphytica
Journal_code EUP
Year 2007
Volume 153 (1-2)
Page 181 197
Author He D
Lin Z
Zhang X
Nie Y
Guo X
Zhang Y
Li W
Language English
Abstract A high-density molecular marker linkage map of cotton based
entirely on polymerase chain reaction-based markers is
useful for a marker-assisted breeding program. Four kinds of
markers-simple sequence repeats (SSRs), sequence-related
amplified polymorphism (SRAP), random amplified polymorphic
DNA (RAPD), and retrotransposon-microsatellite amplified
polymorphism (REMAP)-were used to assay an F-2 population
from a cross between "Handan208" (Gossypium
hirsutum) and "Pima90" (Gossypium barbadense).
Sixty-nine F-2 plants were used for map construction using
834 SSRs, 437 SRAPs, 107 RAPDs, and 16 REMAPs. Linkage
analysis revealed that 1,029 loci could be mapped to 26
linkage groups that extended for 5,472.3 cM, with an average
distance between 2 loci of 5.32 cM. The corresponding 69
F-2:3 families were grown, arranged in two replicates, and
scored for eight phenotypes. Quantitative trait loci (QTL)
analysis was performed by means of composite interval
mapping using WinQtlCart ver2.0. A total of 52 distinct QTLs
were detected: 4 QTLs for lint index, 8 for seed index, 11
for lint yield, 4 for seed cotton yield, 9 for number of
seed per boll, 3 for fiber strength, 5 for fiber length, and
8 for micronaire value. The present map and QTL analysis may
provide a useful tool for breeders to transfer desirable
traits from G. barbadense to the mainly cultivated species,
G. hirsutum.
Refers_to Primer Env1UBC890-1
Env2UBC811
Env3UBC811
Gyp1UBC890.2
Mapping_data Handan-208 x Pima-90, F2:3 (2007)
Trait_study Productivity, He-2007
Fiber quality, Lin-2005
Fiber quality, He-2007
QTL[Show (52)]
Keyword[Show (15)]
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