Indian Society of Genetics & Plant Breeding


Doubled haploid production in maize under sub-montane Himalayan conditions using R1-nj-based haploid inducer TAILP1

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The use of in vivo haploid induction system makes the
doubled haploid (DH) technology easier to adopt for the
conventional maize breeders. However, despite having
played an important role in the initial developmental phases
of DH technology, Indian maize research has yet to harvest
its benefits. Haploid Inducer Lines (HILs) developed by
CIMMYT are being widely used in maize breeding
programmes in many countries including India. There,
however, is no published information on the efficiency of
DH line production using CIMMYT HILs in Indian maize
breeding programmes. In the present study, the efficiency
of DH production using CIMMYT’s tropically adapted
inducer line TAILP1 was investigated with eight source
populations including two of sweet corn. The average
haploid induction rate (HIR) of TAILP1 was 5.48% with a
range of 2.01 to 10.03%. Efficiency of DH production ranged
from 0.14 to 1.87% for different source populations with an
average of 1.07%. The information generated will be useful
for maize breeders intending to use DH technology for
accelerated development of completely homozygous lines.

Keywords: Maize, haploid inducer, doubled haploid, HIR, TAILs


Year: 2020
Volume: 80
Issue: 3
Article DOI: 10.31742/IJGPB.80.3.4
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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