A new method for hybrid seed production based on cytoplasmic male sterility combined with a lethal gene and a female sterile pollenizer in Capsicum annuum L.

1988 ◽  
Vol 76 (4) ◽  
pp. 530-532 ◽  
Author(s):  
S. Daskalov ◽  
L. Mihailov
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Capsicum Annuum ◽  
Seed Production ◽  
Hybrid Seed ◽  
New Method ◽  
Lethal Gene ◽  
Hybrid Seed Production ◽  
Capsicum Annuum L

CMS system and its stimulation in hybrid seed production of Capsicum annuum L.

2017 ◽  
Vol 222 ◽  
pp. 175-179 ◽  
Author(s):  
B.N. Swamy ◽  
N.K. Hedau ◽  
Chaudhari G.V. ◽  
Lakshmi Kant ◽  
A. Pattanayak
Keyword(s):  
Capsicum Annuum ◽  
Seed Production ◽  
Hybrid Seed ◽  
Hybrid Seed Production ◽  
Capsicum Annuum L

A new cytoplasmic male sterility system for hybrid seed production in Indian oilseed mustard Brassica juncea

2006 ◽  
Vol 114 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Y. S. Sodhi ◽  
A. Chandra ◽  
J. K. Verma ◽  
N. Arumugam ◽  
A. Mukhopadhyay ◽  
...  
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Male Sterility ◽  
Brassica Juncea ◽  
Seed Production ◽  
Hybrid Seed ◽  
Hybrid Seed Production

scholarly journals Molecular basis underlying male sterility in bHLH142 overexpressing rice

2017 ◽  
Author(s):  
Swee-Suak Ko ◽  
Min-Jeng Li ◽  
Yi-Jyun Lin ◽  
Hong-Xian Hsing ◽  
Ting-Ting Yang ◽  
...  
Keyword(s):  
Male Sterility ◽  
Seed Production ◽  
Pollen Development ◽  
Early Stage ◽  
Pollen Sterility ◽  
Hybrid Seed ◽  
New Method ◽  
Hybrid Seed Production ◽  
Ros Scavenging ◽  
Early Expression

AbstractDevelopment of stable male sterility lines is essential for efficient hybrid seed production. We previously showed that knockout of bHLH142 in rice (Oryza sativa) causes pollen sterility by interrupting tapetal programmed cell death (PCD). In this study, we demonstrated that overexpression of bHLH142 (OE142) under the control of ubiquitin promoter also leads to male sterility in rice by triggering the premature onset of PCD. Protein of bHLH142 was found to accumulate specifically in the OE142 anthers. Overexpression of bHLH142 induced early expression of several key regulatory transcription factors in pollen development. In particular, the upregulation of EAT1 at the early stage of pollen development promoted premature PCD in the OE142 anthers, while its downregulation at the late stage impaired pollen development by suppressing genes involved in pollen wall biosynthesis, ROS scavenging and PCD. Collectively, these events led to male sterility in OE142. Analyses of related mutants further revealed the hierarchy of these pollen development regulatory genes. Thus, the findings of this study create a new method to generate genic male sterility in rice. Exploitation of this novel functionality of bHLH142 would confer a big advantage to hybrid seed production.HighlightOverexpression of bHLH142 leads to male sterility in transgenic rice due to early onset of tapetal PCD. This study creates a new method to generate male sterility in rice.

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