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Knit directory: PredictOutbredCrossVar/

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Chan et al. 2019 data

https://www.biorxiv.org/content/10.1101/794339v1.full

ftp://ftp.cassavabase.org/manuscripts/Chan_et_al_2019/

Haps

The directory has since been compressed for storage to jj332_cas/ac2278/

Eventually the data will be here:
ftp://ftp.cassavabase.org/manuscripts/Chan_et_al_2019/shapeit2duohmm_mlhaplotypes/

and also: ftp://ftp.cassavabase.org/manuscripts/Wolfe_et_al_2020

For now, they need files are at /jj332_cas/marnin/shapeit2duohmm_mlhaplotypes/

library(tidyverse); library(magrittr); library(furrr); library(data.table)
library(furrr); options(mc.cores=18); plan(multiprocess)
path2haps<-"/workdir/marnin/shapeit2duohmm_mlhaplotypes"
haps<-tibble(Chr=1:18) %>% 
      dplyr::mutate(Haps=future_map(Chr,~fread(paste0(path2haps,"/chr",
                                                      stringr::str_pad(.,width = 3,side = 'left',pad = 0),
                                                      "_0.30.haps"),
                                               stringsAsFactors = F,header = F,sep = " ") %>% 
                                      as.data.frame))
sampleids<-tibble(Chr=1:18) %>% 
      dplyr::mutate(Samples=future_map(Chr,# read in SAMPLE file
                                       ~fread(paste0(path2haps,"/chr",
                                                      stringr::str_pad(.,width = 3,side = 'left',pad = 0),
                                                      "_0.30.sample"), 
                                                  stringsAsFactors = F,header = T,sep = " ") %>% 
                                      slice(-1))) # ignore the first (non-header) row of the SAMPLE file.

SampleIDs<-sampleids$Samples[[1]]$ID_2 %>% 
  tibble(ID=.,SampleIndex=1:length(.), Haplo="_HapA") %>% 
  bind_rows(.,dplyr::mutate(.,Haplo="_HapB")) %>% 
  arrange(SampleIndex) %>% 
  dplyr::mutate(SampleID=paste0(ID,Haplo)) %$% SampleID
options(future.globals.maxSize= 15000*1024^2)
haps %<>%
      dplyr::mutate(Haps=future_map(Haps,function(Haps){
            #Haps<-haps$Haps[[1]]
            colnames(Haps)<-c("Chr","HAP_ID","Pos","REF","ALT",SampleIDs)
            Haps %<>% 
                  dplyr::mutate(HAP_ID=paste0(HAP_ID,"_",REF,"_",ALT)) %>% 
                  column_to_rownames(var = "HAP_ID") %>% 
                  select(-Chr,-Pos,-REF,-ALT)
            Haps %<>% t(.) %>% as.matrix(.)
            return(Haps)}))

haps<-reduce(haps$Haps,cbind)
saveRDS(haps,file=here::here("data","haps_awc.rds"))

sampleids$Samples[[1]]$ID_2 %>% 
  grep("TMS13|TMS14|TMS15|2013_",.,value=T,invert=T) %>% 
  length # 168 parents from the GeneticGain / C0 population

Make dosages from haps

To ensure consistency in allele counting, create dosage from haps.

library(tidyverse); library(magrittr); 
haps<-readRDS(file=here::here("data","haps_awc.rds"))
dosages<-haps %>%
  as.data.frame(.) %>% 
  rownames_to_column(var = "GID") %>% 
  separate(GID,c("SampleID","Haplo"),"_Hap",remove = T) %>% 
  select(-Haplo) %>% 
  group_by(SampleID) %>% 
  summarise_all(~sum(.)) %>% 
  ungroup() %>% 
  column_to_rownames(var = "SampleID") %>% 
  as.matrix
saveRDS(dosages,file=here::here("data","dosages_awc.rds"))

Pedigree

ftp://ftp.cassavabase.org/manuscripts/Chan_et_al_2019/alphapeel.vped

/PredictOutbredCrossVar/data/

library(tidyverse); library(magrittr);
awcped<-read.table(here::here("data","alphapeel.vped"),stringsAsFactors = F, header = F) %>% 
  rename(FullSampleName=V1,
         sireID=V2,
         damID=V3) %>% 
  # Remove families with one or both parents unknown
  filter(sireID!=0,damID!=0)
awcped %>% 
  count(sireID,damID) %$% summary(n)
  #  Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  # 1.000   2.000   4.000   6.924  10.000  72.000
awcped %>% 
  count(sireID,damID) %>% dim # 462 families
saveRDS(awcped,file=here::here("data","ped_awc.rds"))

BLUPs

Select traits and data to be analyzed.

library(tidyverse); library(magrittr);
blups<-readRDS(url("https://raw.github.com/wolfemd/IITA_2019GS/master/data/iita_blupsForCrossVal_72619.rds"))
trials<-readRDS(url("https://raw.github.com/wolfemd/IITA_2019GS/master/data/IITA_ExptDesignsDetected_72619.rds"))
haps<-readRDS(here::here("data","haps_awc.rds"))

germnames<-trials %>% 
  unnest_legacy(TrialData) %>% 
  select(FullSampleName,germplasmName) %>% 
  distinct %>% 
  mutate(GID=ifelse(is.na(FullSampleName),germplasmName,FullSampleName))
#blups %>% select(Trait,Dataset,blups) %>% spread(Dataset,blups)
blups %<>% 
  filter(Dataset=="2013toPresent",
         Trait %in% c("DM","logFYLD","MCMDS","TCHART"))
blups %<>% 
  select(Trait,blups,varcomp) %>% 
  mutate(blups=map(blups,~inner_join(.,germnames) %>% 
                     filter(germplasmName %in% gsub("_HapA|_HapB","",rownames(haps)))))
saveRDS(blups,file=here::here("data","blups_forawcdata.rds"))

Index weights

library(tidyverse); library(magrittr); library(predCrossVar); library(BGLR);
blups<-readRDS(here::here("data","blups_forawcdata.rds")) %>% 
  select(Trait,blups) %>% # BLUPs long-->wide for multivar analysis
  unnest(blups) %>% 
  select(Trait,germplasmName,drgBLUP) %>% 
  spread(Trait,drgBLUP)

indices<-blups %>% 
  summarize_if(is.numeric,sd, na.rm=T) %>% 
  pivot_longer(cols = everything(), names_to = "Trait", values_to = "blupSD") %>% 
  left_join(tibble(Trait=c("DM","logFYLD","MCMDS","TCHART"), 
                   stdSI_unscaled=c(5, 10, -10, -5),
                   biofortSI_unscaled=c(10, 5, -5,10))) %>% 
  mutate(stdSI=stdSI_unscaled/blupSD,
         biofortSI=biofortSI_unscaled/blupSD)
indices %>% mutate_if(is.numeric,~round(.,2))
saveRDS(indices,file=here::here("data","selection_index_weights_4traits.rds"))

Genetic Map