Stock NameTT_Huayu28_x_P76_a
Stock typeMapping Population
Market typeunspecified
OrganismArachis hypogaea (Cultivated peanut)
ParentsHuayu28 P76
A mapping population of 146 F2:11 recombinant inbred lines (RILs) was produced A1:P2 a cross of the cultivated peanut (Arachis hypogaea L.) maternal inbred line 'Huayu28' and paternal inbred line 'P76'. The high-resolution genetic linkage map is composed of 2,334 markers (2,266 SNPs and 68 microsatellites) placed upon 20 linkage groups. The total length of the map is 2,586.37 cM; lengths of linkage groups range from 68.79 to 191.24 cM. The mean distance between adjacent markers is 2.25 cM for the whole map, whereas the average inter-marker distances for individual linkage groups range from 0.3 to 6.09 cM. The number of markers per linkage group ranges from 13 to 369, with the average count of markers on each linkage group being 116.7. Seven hundred of the 2,334 mapped markers across 14 linkage groups exhibited significant segregation distortion, particularly on linkage groups A04, B03, and B05. This high-density map is the first to be developed in cultivated peanut incorporating de novo polymorphic SNP markers discovered using a SLAF-seq (Specific Length Amplified Fragment Sequencing) methodology. The authors first developed 433,679 high-quality SLAFs and then discovered that 29,075 of these SNP markers were polymorphic. There were 7,949 polymorphic markers that followed an aa_x_bb segregation pattern appropriate for linkage analysis, out of which 2,266 SNPs were linked together in the final map.

The following Cultivar stock(s) are Parent1 this Mapping Population:

Stock NameUnique NameSpeciesType
Huayu28Huayu28Arachis hypogaeaCultivar

The following Cultivar stock(s) are Parent2 this Mapping Population:

Stock NameUnique NameSpeciesType
P76P76Arachis hypogaeaCultivar

2018Hu XH, Zhang SZ, Miao HR, Cui FG, Shen Y, Yang WQ, Xu TT, Chen N, Chi XY, Zhang ZM, Chen J. (2018). High-Density Genetic Map Construction and Identification of QTLs Controlling Oleic and Linoleic Acid in Peanut using SLAF-seq and SSRs. Scientific Reports. 8:NULL E5479