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Inheritance of fertility restoration of A5 cytoplasmic-nuclear male sterility system in pearl millet [Pennisetum glaucum (L.) R. Br.]

OAR@ICRISAT

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Relation http://oar.icrisat.org/10744/
http://dx.doi.org/10.5958/0975-6906.2018.00029.9
10.5958/0975-6906.2018.00029.9
 
Title Inheritance of fertility restoration of A5 cytoplasmic-nuclear male sterility system in pearl millet [Pennisetum glaucum (L.) R. Br.]
 
Creator Gupta, S K
Yadav, D V
Govindaraj, M
Boratkar, M
Kulkarni, V N
Rai, K N
 
Subject Plant Breeding
Pearl Millet
Germplasm Collection
 
Description The A5 cytoplasmic-nuclear male sterility (CMS), the most
stable cytoplasm available in pearl millet [Pennisetum
glaucum (L). R. Br.] is yet to be utilized on large scale by
breeders owing to limited fertility restoration in the available
germplasm for this cytoplasm. An understanding of the
inheritance of fertility restoration can make significant
contributions to restorer breeding efficiency of this CMS
system. This study investigated inheritance of fertility
restoration of this CMS system in which three diverse isonuclear
A-lines (P1) were crossed with two A5 restorer lines
(P2) to produce 4 F1s and their respective F2s and two
backcrosses. These were evaluated for male sterility (S)
and fertility (F) for two seasons at International Crops
Research Institute for the Semi-Arid Tropics (ICRISAT)
Patancheru. The segregation patterns in the F2 (54F:10S)
and BCP1 (3F:1S) were broadly suggestive of trigenic
inheritance of male fertility restoration, where dominant
alleles at any two of the three duplicate complimentary loci
will lead to fertility restoration.
 
Publisher The Indian Society of Genetics & Plant Breeding
 
Date 2018-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10744/1/10-SHASHI%20KUMAR%20GUPTA.pdf
Gupta, S K and Yadav, D V and Govindaraj, M and Boratkar, M and Kulkarni, V N and Rai, K N (2018) Inheritance of fertility restoration of A5 cytoplasmic-nuclear male sterility system in pearl millet [Pennisetum glaucum (L.) R. Br.]. Indian Journal of Genetics and Plant Breeding (TSI), 78 (2). pp. 228-232. ISSN 0019-5200