scholarly journals Mapping three new interspecific hybrid sterile loci between Oryza sativa and O. glaberrima

2014 ◽  
Vol 63 (5) ◽  
pp. 476-482 ◽  
Author(s):  
Peng Xu ◽  
Jiawu Zhou ◽  
Jing Li ◽  
Fengyi Hu ◽  
Xianneng Deng ◽  
...  
2018 ◽  
Vol 68 (2) ◽  
pp. 242-247 ◽  
Author(s):  
Yu Zhang ◽  
Jiawu Zhou ◽  
Jing Li ◽  
Ying Yang ◽  
Peng Xu ◽  
...  

2008 ◽  
Vol 58 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Kotaro Miura ◽  
Eiji Yamamoto ◽  
Yoichi Morinaka ◽  
Tomonori Takashi ◽  
Hidemi Kitano ◽  
...  

2018 ◽  
Vol 68 (5) ◽  
pp. 516-523 ◽  
Author(s):  
Jing Li ◽  
Jiawu Zhou ◽  
Peng Xu ◽  
Xianneng Deng ◽  
Wei Deng ◽  
...  

Genome ◽  
2019 ◽  
Vol 62 (11) ◽  
pp. 705-714
Author(s):  
Kishor Kumar ◽  
Kumari Neelam ◽  
Gurpreet Singh ◽  
Jyotirmaya Mathan ◽  
Aashish Ranjan ◽  
...  

Oryza punctata Kotschy ex Steud. (BB, 2n = 24) is a wild species of rice that has many useful agronomic traits. An interspecific hybrid (AB, 2n = 24) was produced by crossing O. punctata and Oryza sativa variety Punjab Rice 122 (PR122, AA, 2n = 24) to broaden the narrow genetic base of cultivated rice. Cytological analysis of the pollen mother cells (PMCs) of the interspecific hybrids confirmed that they have 24 chromosomes. The F1 hybrids showed the presence of 19–20 univalents and 1–3 bivalents. The interspecific hybrid was treated with colchicine to produce a synthetic amphiploid (AABB, 2n = 48). Pollen fertility of the synthetic amphiploid was found to be greater than 50% and partial seed set was observed. Chromosome numbers in the PMCs of the synthetic amphiploid were 24II, showing normal pairing. Flow cytometric analysis also confirmed doubled genomic content in the synthetic amphiploid. Leaf morphological and anatomical studies of the synthetic amphiploid showed higher chlorophyll content and enlarged bundle sheath cells as compared with both of its parents. The synthetic amphiploid was backcrossed with PR122 to develop a series of addition and substitution lines for the transfer of useful genes from O. punctata with least linkage drag.


Rice Science ◽  
2008 ◽  
Vol 15 (4) ◽  
pp. 283-288 ◽  
Author(s):  
Chuan-deng YI ◽  
Xu CHENG ◽  
Bei-bei WANG ◽  
Guo-hua LIANG ◽  
Zhi-yun GONG ◽  
...  

Euphytica ◽  
2012 ◽  
Vol 192 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Kanako Yasuda ◽  
Takuji Tsukiyama ◽  
Shanta Karki ◽  
Yutaka Okumoto ◽  
Masayoshi Teraishi ◽  
...  

1970 ◽  
Vol 5 (3) ◽  
pp. 391-403
Author(s):  
Wiwik Winarti ◽  
Eva Sartini Bayu ◽  
Revandy Iskandar Damanik

Keragaan morfologi dan kandungan antosianin padi beras merah (Oryza sativa L.) pada Kecamatan Munte dan Kecamatan Payung di Kabupaten Karo. Penelitian ini bertujuan untuk mendapatkan informasi morfologi dan kandungan antosianin padi beras merah (Oryza sativa L.). Penelitian ini dimulai dari Juni 2017dan selesai pada Januari 2018 di kecamatan Munte dan Kecamatan Payung Kabupaten Karo.Metode survei deskriptif menggunakan panduan International Rice Research Institute (IRRI). Teknik penentuan lokasi secara sengaja dan pengamblan sampel secara kebetulan.Uji kandungan antosianin menggunakan metode analitik dengan menghomogenkan sampel. Hasil eksplorasi didapatkan 72 genotipe yang dibagi menjadi tiga lokasi lahan. Berdasaran uji kandungan antosianin didapatkan lahan A memiliki kandungan tertinggi yaitu 0,5 mg/100 g dan terendah yaitu lahan B 0,08 mg/100 g.


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