Pre-breeding to expand primary genepool through introgression of genes from wild Cajanus species for pigeonpea improvement
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Shivali Sharma. (Accepted on 8/1/2016). Pre-breeding to expand primary genepool through introgression of genes from wild Cajanus species for pigeonpea improvement. Legume Perspectives.
Abstract
Narrow genetic base coupled with
low levels of resistance against important
biotic/abiotic stresses in cultivated
pigeonpea is the major constraint affecting
its production and productivity globally.
Wild Cajanus species are the reservoir of
many important genes and can be utilized to
improve the crop cultivars, enrich variability,
and broaden the genetic base. Pre-breeding
populations involving wild Cajanus species
from the secondary and tertiary genepools as
donors and pigeonpea cultivars as recipients
have been developed. Considerable
variability was observed in these populations
for morpho-agronomic traits and for biotic
stresses. Agronomically desirable and disease
resistant introgression lines have been
identified for use in pigeonpea improvement
programs.
