Ecogeographic Variation in the Morphology of Two Asian Wild Rice Species, Oryza nivara and Oryza rufipogon

2013 ◽  
Vol 174 (6) ◽  
pp. 896-909 ◽  
Author(s):  
Maria Celeste N. Banaticla-Hilario ◽  
Marc S. M. Sosef ◽  
Kenneth L. McNally ◽  
Nigel Ruaraidh Sackville Hamilton ◽  
Ronald G. van den Berg
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Oryza Nivara ◽  
Wild Rice Species

scholarly journals Identification of long noncoding natural antisense transcripts (lncNATs) correlated with drought stress response in wild rice (Oryza nivara)

2021 ◽  
Author(s):  
Yong-Chao Xu ◽  
Jie Zhang ◽  
Dong-Yan Zhang ◽  
Ying-Hui Nan ◽  
Song Ge ◽  
...  
Keyword(s):  
Drought Stress ◽  
Stress Response ◽  
Wild Rice ◽  
Oryza Rufipogon ◽  
Cultivated Rice ◽  
Antisense Transcripts ◽  
High Genetic Diversity ◽  
Natural Antisense Transcripts ◽  
Form Complex ◽  
Oryza Nivara

Abstract Background Wild rice, including Oryza nivara and Oryza rufipogon, which are considered as the ancestors of Asian cultivated rice (Oryza sativa L.), possess high genetic diversity and serve as a crucial resource for breeding novel cultivars of cultivated rice. Although many rice domestication related traits, such as seed shattering and plant architecture, have been intensively studied at the phenotypic and genomic levels, further investigation is needed to understand the molecular basis of phenotypic differences between cultivated and wild rice. Drought stress is one of the most severe abiotic stresses affecting rice growth and production. Adaptation to drought stress involves a cascade of genes and regulatory factors that form complex networks. Long noncoding natural antisense transcripts (lncNATs), a class of long noncoding RNAs (lncRNAs), regulate the corresponding sense transcripts and play an important role in plant growth and development. However, the contribution of lncNATs to drought stress response in wild rice remains largely unknown. Results Here, we conducted strand-specific RNA sequencing (ssRNA-seq) analysis of Nipponbare (O. sativa ssp. japonica) and two O. nivara accessions (BJ89 and BJ278) to determine the role of lncNATs in drought stress response in wild rice. A total of 1,246 lncRNAs were identified, including 1,091 coding–noncoding NAT pairs, of which 50 were expressed only in Nipponbare, and 77 were expressed only in BJ89 and/or BJ278. Of the 1,091 coding–noncoding NAT pairs, 240 were differentially expressed between control and drought stress conditions. Among these 240 NAT pairs, 12 were detected only in Nipponbare, and 187 were detected uniquely in O. nivara. Furthermore, 10 of the 240 coding–noncoding NAT pairs were correlated with genes previously demonstrated to be involved in stress response; among these, nine pairs were uniquely found in O. nivara, and one pair was shared between O. nivara and Nipponbare. Conclusion We identified lncNATs associated with drought stress response in cultivated rice and O. nivara. These results will improve our understanding of the function of lncNATs in drought tolerance and accelerate rice breeding.

scholarly journals Enhancement of Rice Leaf Photosynthesis by Crossing between Cultivated Rice,Oryza sativaand Wild Rice Species,Oryza rufipogon

2004 ◽  
Vol 7 (3) ◽  
pp. 252-259 ◽  
Author(s):  
Chisato Masumoto ◽  
Takashige Ishii ◽  
Sono Kataoka ◽  
Tomoko Hatanaka ◽  
Naotsugu Uchida
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Leaf Photosynthesis ◽  
Cultivated Rice ◽  
Rice Leaf ◽  
Wild Rice Species

scholarly journals Population genetics and evolutionary history of the wild rice species Oryza rufipogon and O. nivara in Sri Lanka

2018 ◽  
Vol 8 (23) ◽  
pp. 12056-12065
Author(s):  
Salinda Sandamal ◽  
Asanka Tennakoon ◽  
Qing-Lin Meng ◽  
Buddhi Marambe ◽  
Disna Ratnasekera ◽  
...  
Keyword(s):  
Population Genetics ◽  
Sri Lanka ◽  
Wild Rice ◽  
Evolutionary History ◽  
Oryza Rufipogon ◽  
Wild Rice Species ◽  
History Of

Characterization and evolutionary analysis of ent-kaurene synthase like genes from the wild rice species Oryza rufipogon

2016 ◽  
Vol 480 (3) ◽  
pp. 402-408 ◽  
Author(s):  
Tomonobu Toyomasu ◽  
Koji Miyamoto ◽  
Matthew R. Shenton ◽  
Arisa Sakai ◽  
Chizu Sugawara ◽  
...  
Keyword(s):  
Wild Rice ◽  
Oryza Rufipogon ◽  
Evolutionary Analysis ◽  
Wild Rice Species

scholarly journals Identification of long noncoding natural antisense transcripts (lncNATs) correlated with drought stress response in wild rice (Oryza nivara)

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Yong-Chao Xu ◽  
Jie Zhang ◽  
Dong-Yan Zhang ◽  
Ying-Hui Nan ◽  
Song Ge ◽  
...  
Keyword(s):  
Drought Stress ◽  
Stress Response ◽  
Drought Tolerance ◽  
Wild Rice ◽  
Oryza Rufipogon ◽  
Cultivated Rice ◽  
Antisense Transcripts ◽  
Natural Antisense Transcripts ◽  
Form Complex ◽  
Oryza Nivara

Abstract Background Wild rice, including Oryza nivara and Oryza rufipogon, which are considered as the ancestors of Asian cultivated rice (Oryza sativa), possess high genetic diversity and serve as a crucial resource for breeding novel cultivars of cultivated rice. Although rice domestication related traits, such as seed shattering and plant architecture, have been intensively studied at the phenotypic and genomic levels, further investigation is needed to understand the molecular basis of phenotypic differences between cultivated and wild rice. Drought stress is one of the most severe abiotic stresses affecting rice growth and production. Adaptation to drought stress involves a cascade of genes and regulatory factors that form complex networks. O. nivara inhabits swampy areas with a seasonally dry climate, which is an ideal material to discover drought tolerance alleles. Long noncoding natural antisense transcripts (lncNATs), a class of long noncoding RNAs (lncRNAs), regulate the corresponding sense transcripts and play an important role in plant growth and development. However, the contribution of lncNATs to drought stress response in wild rice remains largely unknown. Results Here, we conducted strand-specific RNA sequencing (ssRNA-seq) analysis of Nipponbare (O. sativa) and two O. nivara accessions (BJ89 and BJ278) to determine the role of lncNATs in drought stress response in wild rice. A total of 1246 lncRNAs were identified, including 1091 coding–noncoding NAT pairs, of which 50 were expressed only in Nipponbare, and 77 were expressed only in BJ89 and/or BJ278. Of the 1091 coding–noncoding NAT pairs, 240 were differentially expressed between control and drought stress conditions. Among these 240 NAT pairs, 12 were detected only in Nipponbare, and 187 were detected uniquely in O. nivara. Furthermore, 10 of the 240 coding–noncoding NAT pairs were correlated with genes enriched in stress responsive GO terms; among these, nine pairs were uniquely found in O. nivara, and one pair was shared between O. nivara and Nipponbare. Conclusion We identified lncNATs associated with drought stress response in cultivated rice and O. nivara. These results will improve our understanding of the function of lncNATs in drought tolerance and accelerate rice breeding.

scholarly journals Phenotype and genotype variability of interspecific rice lines related to bacterial leaf blight resistance (Xanthomonas oryzae pv. oryzae) character

2021 ◽  
Vol 22 (10) ◽  
Author(s):  
SITI YURIYAH ◽  
DEDY DARNAEDI ◽  
TATANG MITRA SETIA ◽  
GUT WINDARSIH ◽  
Dwinita Wikan Utami
Keyword(s):  
Resistance Gene ◽  
Wild Rice ◽  
Leaf Blight ◽  
Oryza Rufipogon ◽  
Xanthomonas Oryzae ◽  
Bacterial Leaf Blight ◽  
Yield Potential ◽  
Interspecific Crosses ◽  
Blight Resistance ◽  
Wild Rice Species

Abstract. Yuriyah S, Darnaedi D, Setia TM, Windarsih G, Utami DW. 2021. Phenotype and genotype variability of interspecific rice lines related to bacterial leaf blight resistance (Xanthomonas oryzae pv. oryzae) character. Biodiversitas 22: 4123-4130. Wild rice species are the source of the gene pool for rice genetic diversity. The cross-species crosses (interspecific crosses) play an important role in breeding, namely in terms of expanding the diversity of desirable characters, such as disease resistance and improvement in yield potential. Currently, the genes from wild rice species have been successfully introgressed into cultivated rice so that they can overcome the rice production constraints, including the introgression of genes for the bacterial leaf blight (BLB) resistance. The purpose of this study was to analyze the variability of phenotype and genotype performance of lines derived from wild rice species for the character of resistance to BLB disease. A total of 33 selected backcross lines derived from wild rice species of O. rufipogon and O. glaberrima as the donor parents and 2 control varieties (resistant and susceptible to BLB disease), were used in this study. The evaluation of phenotype and genotype of resistance characters to BLB disease was carried out during a vegetative phase of the plant. The resistance evaluation was carried out in a greenhouse, while the genotype performance was analyzed using 4 STS markers linked to Xa4, Xa7, and Xa13 genes. The result of the phenotype evaluation showed that there were variations among the resistance of the tested lines. Three lines derived from a Situ Bagendit/Oryza rufipogon cross were resistant to all BLB races used in the testing. Those three lines indicated to have the allele of the Xa7 resistance gene based on the genotype performance which grouped with the Code variety that had the Xa7 resistance gene.

Phosphate Solubilizing Rhizospherebacterial T21 Isolated from Dongxiang Wild Rice Species Promotes Cultivated Rice Growth

2011 ◽  
Vol 108 ◽  
pp. 167-175 ◽  
Author(s):  
Qing Gui Zeng ◽  
Fei Luo ◽  
Zhi Bin Zhang ◽  
Ri Ming Yan ◽  
Du Zhu
Keyword(s):  
Plant Growth ◽  
Wild Rice ◽  
Pantoea Agglomerans ◽  
Oryza Rufipogon ◽  
Plant Growth Promoting Bacteria ◽  
Cultivated Rice ◽  
Wild Rice Species ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Dongxiang Wild Rice

The capability of bacterial strain T21 isolated from Dongxiang wild rice (Oryza rufipogon) rhizosphere to behave as plant growth promoting bacteria (PGPB) was investigated. Rhizosphere bacteria T21 showed P-solubilizing capability when cultured in the PVK medium amended with tricalcium phosphate. The strain T21 also showed nitrogen-fixing activity in N-free medium, and produced indole-3-acetic (IAA) and siderophore. The strain T21 was identified as Pantoea agglomerans by morphology, physiological and biochemical properties, and 16S rDNA sequence analysis. The strain T21 was formulated as an inoculant in order to evaluate its growth promotion effect in the field when applied on the cultivated rice at the sowing time. It showed a significant plant growth-promoting effect on seedling length, root length, fresh weight and dry weight of the cultivated rice (Oryza sativa). These findings fetched us to conclude that wild rice rhizospheric microorganism Pantoea agglomerans T21 could stimulate the growth of cultivated rice in vivo in poor soil.

Sign in / Sign up

Export Citation Format

Share Document