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Maternal effect on grain iron and zinc densities in pearl millet

OAR@ICRISAT

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Relation http://oar.icrisat.org/11281/
 
Title Maternal effect on grain iron and zinc densities in pearl millet
 
Creator Kanatti, A
Govindaraj, M
Rai, K N
Rao, A S
 
Subject Pearl Millet
Genetics and Genomics
 
Description Genetic variation and inheritance of micronutrients in pearl millet has largely been studies in
recent years as part of biofortification initiatives. Both iron (Fe) and zinc (Zn) densities are
highly heritable and determined by additive genetic variances. In this context, genetics of
maternal (cytoplasmic) effect on inheritance of grain Fe and Zn was studied using a set of
diverse breeding material, consisting of inbreds, hybrids and OPVs. Entries were paired for
low and high for Fe density to produce direct and reciprocal crosses. Parents and their
crosses were evaluated for two contrast seasons (summer and rainy). Over two seasons,
highly significant variation exhibited by parents and hybrids. Fe density among parents varied
from 31 to 64 mg kg–1 and Zn density varied from 28 to 43 mg kg–1. The differences of direct
and reciprocal hybrids for both micronutrients were non-significant indicate that genetics of
both the micronutrients controlled by nuclear determinants and cytoplasmic or maternal
gene cannot modify inheritance of these traits. Difference between each direct and reciprocal
crosses for both Fe (1 to 4 mg kg–1) and Zn (0 to 2 mg kg–1) were negligible. These results
indicate the high Fe/Zn inbreds can be used either female or male parent in seed and restorer
parent breeding program. In addition, the highly significant and high positive association
between Fe and Zn, suggesting, both could be enhanced simultaneously.
 
Date 2018-12
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11281/1/2018_Kanatti%20et%20al.%2C%202018_Conf_NGC2018_Page277.pdf
Kanatti, A and Govindaraj, M and Rai, K N and Rao, A S (2018) Maternal effect on grain iron and zinc densities in pearl millet. In: 1st National Genetics Congress on Genetics for Sustainable Food, Health and Nutrition Security, December 14-16, 2018, ICAR- lndian Agricultural Research Institute, New Delhi, India.