Chloroplast DNA genetic diversity between Asian cultivated rice (Oryza Sativa L.) and different types of cytoplasmic male sterile rice

2012 ◽  
Vol 7 (25) ◽  
Author(s):  
Wen-Jia Li
Keyword(s):  
Genetic Diversity ◽  
Oryza Sativa ◽  
Chloroplast Dna ◽  
Oryza Sativa L ◽  
Male Sterile ◽  
Cultivated Rice ◽  
Cytoplasmic Male Sterile ◽  
Different Types

Production of Cytoplasmic Male Sterile Rice (Oryza Sativa L.) by Cell Fusion

1989 ◽  
Vol 7 (11) ◽  
pp. 1171-1174
Author(s):  
Junko Kyozuka ◽  
Takeo Kaneda ◽  
Ko Shimamoto
Keyword(s):  
Oryza Sativa ◽  
Cell Fusion ◽  
Oryza Sativa L ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile

Geographic pattern of variation among Asian native rice cultivars (Oryza sativa L.) based on fifteen isozyme loci

Genome ◽  
1988 ◽  
Vol 30 (5) ◽  
pp. 782-792 ◽  
Author(s):  
J. C. Glaszmann
Keyword(s):  
Genetic Diversity ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Indian Subcontinent ◽  
Indica Rice ◽  
Japonica Rice ◽  
Geographic Pattern ◽  
Cultivated Rice ◽  
Rice Varieties ◽  
Himalayan Foothills

The geographic pattern of isozyme variation among rice varieties (Oryza sativa L.) in Asia is described based on an electrophoretic survey of 1688 accessions for 15 loci. The distribution patterns are strongly determined by the existence of several varietal groups that are characterized by contrasting multilocus types with dissimilar environmental and macrogeographic distributions. The two main groups correspond to the indica and japonica subspecies. Other types are frequently found in the Indian subcontinent, especially along the Himalayan foothills. These types are predominant in the Indus River basin. They are differentiated into four groups in the eastern part of the Himalayan foothills. There is variation within the groups. Non-random allele distributions are observed, such as regional clines and narrow localization of alleles. Diversity among indica rice is evenly distributed in whole tropical Asia. Variation among japonica rice shows the hilly part of continental Southeast Asia to be the region of highest genetic diversity and its probable area of origin. All this information provides a guide for further analysis aimed at elucidating the history of cultivated rice in Asia and, subsequently, in other continents.Key words: Asian rice, genetic diversity, isozymes, geographic distributions.

Chloroplast DNA polymorphism in different types of cytoplasmic male sterile rice

2009 ◽  
Vol 53 (3) ◽  
pp. 593-596 ◽  
Author(s):  
L. -J. Ou ◽  
G. -W. Huang ◽  
W. -J. Li ◽  
G. P. Kang ◽  
J. -L. Chen ◽  
...  
Keyword(s):  
Chloroplast Dna ◽  
Dna Polymorphism ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile ◽  
Different Types

scholarly journals Combining ability analysis for various yield and quality traits in rice (Oryza sativa L.)

2015 ◽  
Vol 7 (2) ◽  
pp. 865-873
Author(s):  
Showkat A. Waza ◽  
H. K. Jaiswal ◽  
T. Sravan ◽  
Kumari Priyanka ◽  
Dilruba A. Bano ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Combining Ability ◽  
Oryza Sativa L ◽  
Yield Traits ◽  
Quality Traits ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile ◽  
Yield And Quality ◽  
Combining Ability Analysis

An investigation was undertaken to assess the combining ability for yield and quality traits in rice. Three WA cytoplasmic male sterile lines of rice i.e., IR-58025A, IR-68897A and Pusa 6A were crossed with six restorer genotypes i.e., Sanwal Basmati, Pusa Sugandh-2, Pusa Sugandh-3, Pusa Sugandh-5, Pusa 2517-2-51-1 and HURJM- 59221 in line x tester design to generate 18 hybrids. Among the female parents, IR-58025A revealed significant desirable value of GCA effect for yield per plant and most of the quality traits. Among the pollen parents, Pusa Sugandh-3 revealed significant desirable value of GCA effect for most of the yield traits. However, Pusa Sugandh-5 revealed significant desirable value of GCA effect for most of the quality traits. Pusa 6A x Pusa Sugandh-2 evinced the highest significant value of SCA effect for grain yield followed by IR-58025A x Pusa Sugandh-5. However, IR- 68897A x Pusa 2517-2-51-1 followed by IR-58025A x Sanwal Basmati revealed the significant desirable value of SCA effect for most of the quality traits. For both yield and quality traits, IR-58025A x Pusa Sugandh-5, IR-68897A x HUR-JM-59221 and Pusa 6A x Pusa Sugandh-2 were found to be relatively better performing. Thus, present study aims to develop hybrids performing better for both yield and quality traits.

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