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Stability of Cytoplasmic Genetic Male Sterility and Fertility Restoration in Pigeonpea

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Relation http://oar.icrisat.org/8829/
http://dx.doi.org/10.1080/15427528.2015.1010680
 
Title Stability of Cytoplasmic Genetic Male Sterility and Fertility Restoration in Pigeonpea
 
Creator Chaudhari, S
Tikle, A N
Uttamchand, .
Saxena, K B
Rathore, A
 
Subject Pigeonpea
Genetics and Genomics
 
Description In cytoplasmic genetic male sterility-based (CGMS) hybrid seed
production, instability of expression of male-sterility and fertility
restoration across a wide range of environments are two of the
major difficulties. Therefore, the present study was carried out to
investigate the stability of male sterility of nine CGMS lines under
three dates of sowing and the fertility restoration of 10 CGMS-based
pigeonpea ( Cajanus cajan (L.) Millsp.) hybrids at three different
locations. Significant variability existed for pollen fertility among
hybrids and sterility among cytoplasmic male sterile (CMS) lines.
All the hybrids except ICPH 3494 and ICPH 3491 exhibited high
(>80%) pollen fertility across locations. Hybrids ICPH 2671, ICPH
2740, and ICPH 3933 had 100% male-fertile plants across locations.
All the CMS lines had completely male-sterile plants across
sowing dates. The CMS lines BRG1 A, Hy3C A, BRG3 A, and TTB7 A
exhibited 100% pollen sterility at different sowing dates. The pooled
analysis revealed a significant genotype × environment interaction
for pollen fertility and sterility. The genotypic main effect
+ GE (GGE) biplot of hybrids showed that hybrids ICPH 2671,
2740, 3933, and 3461 were stable for fertility restoration. With the
exception of ICPA 2047 and ICPA 2051, all the CMS lines were
highly stable with high mean performance and least distance from
AEA (average environmental axis). Male-sterility in A4 cytoplasm
was independent of environmental conditions. Different dates of
sowing did not affect expression of male sterility of these CMS lines.
 
Publisher Taylor & Francis Group
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8829/1/Stability%20of%20Cytoplasmic%20Genetic%20Male%20Sterility%20and%20Fertility%20Restoration%20in%20Pigeonpea.pdf
Chaudhari, S and Tikle, A N and Uttamchand, . and Saxena, K B and Rathore, A (2015) Stability of Cytoplasmic Genetic Male Sterility and Fertility Restoration in Pigeonpea. Journal of Crop Improvement, 29 (3). pp. 269-280. ISSN 1542-7528