Other agronomic features and grain quality of the NILs were comparable to those of the recurrent parent
vulgare 'Harrington' (a North American malting quality standard) was the recurrent parent
. The recurrent parent
was used as the female and donor as the male to obtain the [F.sub.1] generation.
Out of three NILs of IR 64, IET 20667 showed maximum genetic similarity (0.74) with recurrent parent
IR 64; while for Swarna, all three lines exhibited moderate degree of genetic similarity ranging from 0.63 to 0.67.
A total of 82 background markers were used to evaluate recovery of recurrent parent
genome in each backcrossed generation.
Populations for AB-QTL analysis commonly use exotic or wild germplasm as the donor and elite germplasm as the recurrent parent
. The QTL analysis is conducted in the B[C.sub.2] or B[C.sub.3] generation to reduce the frequency of deleterious donor alleles.
First backcrosses ([BC.sub.1]) will have, on average, three quarters (0.75) of the resistance alleles of the recurrent parent
, if recombination can occur for all chromosome pairs.
Linoleate contents of B[C.sub.i][F.sub.2] seeds derived from a given recurrent parent
were sorted from lowest to highest and plotted in column graphs to permit visual inspection of the distributions.
Initial crosses between the recurrent parent
'Karee' (PI 634773) and the resistance donors mentioned above were made in 1993.
However during the seed increases of these lines in 2002 at UC Davis we observed increased resistance to leaf rust in the Yecora Rojo Lr47 line (no infection) compared to the adjacent recurrent parent
Yecora Rojo (80% infection, susceptible reaction).
Genetic stock designations, recurrent parent
, brown midrib gene, and descriptive characteristics of sorghum brown midrib near-isolines averaged over four environments ([dagger]).
Since genetic drift may have occurred within the recurrent parent
inbred lines during multiple generations of maintenance at Lincoln, NE, seed of the recurrent parents
used by this project will be distributed with the genetic stocks to maximize similarity of nuclear genes in each set of lines in the various backgrounds.
barbadense chromosome substitution line involved three stages: (i) development of a TM-1--like hypoaneuploid stock that served as the TM-1-like recurrent parent
(Table 1), (ii) selective introgression of a G.