Bnapus {qtlbim} | R Documentation |
Contains genotypes and phenotypes for Brassica napus study, including 0- 4- and 8-week vernalization, survival, and 19 chromosomes.
data(Bnapus)
See read.cross
in library(qtl)
for format.
Traits included are percent winter survival for 1992-3, 1993-4, 1994-5, 1997-8, and 1999-2000 (surv92, surv93, surv94, surv97, surv99, respectively), and days to flowering after no vernalization (flower0), 4 weeks vernalization (flower4) or 8 weeks vernalization (flower8). Percents are of plants alive in the Fall, taken from the middle of rows (totals unavailable). Days to flowering after transplant are averages over four replicates from a RCB design (values by block unavailable). First column has the trait name. The remaining columns identify individual DH line (302-455).
Marker genotype data for Major x Stellar double haploid (DH)
population. Double haploids have the same relation of recombination to
distance as backcrosses as there is just one meiosis tracked (in
F1). However, DH are homozygous at every locus (usually mapped as RI0
lines). Marker genotypes are coded as M = Major, S = Stellar, - =
missing. Data columns are
chrom
= B. napus chromosome (N1, N2, etc.);
order
= along chromosome;
cM
= istance from proximal end;
marker
= marker name
(E = AFLP;
*ec, *tg, *wg = RFLP;
*xxx = other markers from Arabidopsis:
Lem, eru1, eru2, fad3, isoDia, isoIdh, isoPgi, isoLap, pr2, slg6, Aca1, cor15).
Remaining columns are for individual DH lines (identifier 302-455).
Thomas C. Osborn, Department of Agronomy, UW-Madison (http://agronomy.wisc.edu).
http://www.stat.wisc.edu/~yandell/qtl/data/osborn/Bnapus
Ferreira ME, Satagopan J, Yandell BS, Williams PH, Osborn TC (1995) Mapping loci controlling vernalization requirement and flowering time in Brassica napus. Theor Appl Genet 90: 727-732. [original source and analysis]
JM Satagopan, BS Yandell, MA Newton and TC Osborn (1996)
Markov chain Monte Carlo approach to detect polygene loci
for complex traits. Genetics 144: 805-816.
http://www.genetics.org/cgi/content/abstract/144/2/805
[first MCMC for experimental crosses; analysis of B. napus N2=LG9; see
vern
data]
Kole C, Thorman CE, Karlsson BH, Palta JP, Gaffney P, Yandell BS, Osborn TC (2001) Comparative mapping of loci controlling winter survival and related traits in oilseed Brassica rapa and B. napus. Molecular Breeding 1: 329-339. [refined map and reanalysis]
data(Bnapus) summary(Bnapus)