AUTHOR=Bagheri Hedayat , El-Soda Mohamed , van Oorschot Inge , Hanhart Corrie , Bonnema Guusje , Jansen - van den Bosch Tanja , Mank Rolf , Keurentjes Joost , Meng Lin , Wu Jian , Koornneef Maarten , Aarts Mark G.

TITLE=Genetic analysis of morphological traits in a new, versatile, rapid-cycling Brassica rapa recombinant inbred line population

JOURNAL=Frontiers in Plant Science

VOLUME=3

YEAR=2012

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2012.00183

DOI=10.3389/fpls.2012.00183

ISSN=1664-462X

ABSTRACT=<p>A recombinant inbred line (RIL) population was produced based on a wide cross between the rapid-cycling and self-compatible genotypes L58, a Caixin vegetable type, and R-o-18, a yellow sarson oil type. A linkage map based on 160 F7 lines was constructed using 100 Single nucleotide polymorphisms (SNPs), 130 AFLP®, 27 InDel, and 13 publicly available SSR markers. The map covers a total length of 1150 centiMorgan (cM) with an average resolution of 4.3 cM/marker. To demonstrate the versatility of this new population, 17 traits, related to plant architecture and seed characteristics, were subjected to quantitative trait loci (QTL) analysis. A total of 47 QTLs were detected, each explaining between 6 and 54% of the total phenotypic variance for the concerned trait. The genetic analysis shows that this population is a useful new tool for analyzing genetic variation for interesting traits in <italic>B. rapa</italic>, and for further exploitation of the recent availability of the <italic>B. rapa</italic> whole genome sequence for gene cloning and gene function analysis.</p>