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A new cytoplasmic-nuclear male sterility system in pearl millet

OAR@ICRISAT

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Relation http://oar.icrisat.org/2450/
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0523.1995.tb00829.x/abstract
 
Title A new cytoplasmic-nuclear male sterility system in pearl millet
 
Creator Rai, K N
 
Subject Millets
 
Description Among the cytoplasmic-nuclear male sterility (CMS) systems reported in pearl millet, Pennisetum glaucum (L.) R. Br., the Am= A4 system produces the highest frequency of male-sterile hybrids. A CMS source identified in a large-seeded gene pool (LSGP) was compared with the A4 system. Seven diverse restorer lines of the A4 system produced hybrids with 81A4 that were all fertile (pollen-shedding score 4 and 68–89% selfed seedset). In contrast, all the hybrids of these inbreds made with the isonuclear line with the LSGP cytoplasm were sterile (pollen-shedding score 1 and 0–3% selfed seedset). Topcross hybrids of four diverse composites made with 81A4 had 10–35% plants that had good fertility (> 50% selfed seedset). In comparison, no plant of any topcross hybrid with the isonuclear line having LSGP cytoplasm exceeded 20% selfed seedset, and it was rare for a plant to exceed even 10% selfed seedset. These differential fertility restoration patterns of hybrids indicate that the LSGP cytoplasm represents a CMS system that is different from the A4 and, by implication, from all those reported to date. This new CMS system is designated A5
 
Publisher Blackwell Publishing
 
Date 1995
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/2450/1/PlantBreeding_114_5_445-447_1995.pdf
Rai, K N (1995) A new cytoplasmic-nuclear male sterility system in pearl millet. Plant Breeding, 114 (5). pp. 445-447. ISSN 0179-9541