Results 11 to 20 of about 13,762 (151)

qSE7 is a major quantitative trait locus (QTL) influencing stigma exsertion rate in rice (Oryza sativa L.). [PDF]

Sci Rep, 2018
AbstractStigma exsertion is a key determinant to increase the efficiency of commercial hybrid rice seed production. The major quantitative trait locus (QTL) qSE7 for stigma exsertion rate was previously detected on the chromosome 7 using 75 Chromosome Segment Substitution Lines (CSSLs) derived from a cross between the high stigma exsertion indica ...
Zhang K, Zhang Y, Wu W, Zhan X, Anis GB, Rahman MH, Hong Y, Riaz A, Zhu A, Cao Y, Sun L, Yang Z, Yang Q, Cao L, Cheng S.   +14 more
europepmc   +7 more sources

Four QTLs control stigma exsertion rate by changing stigma size in rice. [PDF]

Mol Breed
The stigma exsertion rate (SER) is a key trait for the outcrossing ability of hybrid rice, which directly affects the yield of hybrid seeds in hybrid seed production. In previous studies, we have located 18 QTLs for SER using single-segment substitution lines in rice. In this study, we found that 4 of 18 QTLs for SER controlled stigma size (SS).
Tan Q, Gan Z, Xiong L, Shao L, Yang W, Luan X, Chen G, Li F, Ni Y, Zhu H, Liu G, Bu S, Wang S, Zhang G.   +13 more
europepmc   +5 more sources

Identification of a major quantitative trait locus and its candidate underlying genetic variation for rice stigma exsertion rate

Crop Journal, 2019
Stigma exsertion in male sterile lines of hybrid rice is important for seed yield. In the present study, ZS616 [Oryza sativa subsp. Xian (indica)], a male sterile line with a stigma exsertion rate (SER) as high as 94.5%, was crossed to DS552, a japonica ...
Shouling Xu, Yunchao Zheng, Yang Liu, Xiaohao Guo, Yuanyuan Tan, Qiuping Qian, Qingyao Shu, Jianzhong Huang   +7 more
doaj   +3 more sources

Research Progress on the Trait of Stigma Exsertion in Rice [PDF]

Plants
As global food demand continues to grow, enhancing rice seed-setting rate and yield has emerged as a crucial research topic. The stigma exsertion rate in rice, a pivotal determinant of the outcrossing seed-setting rate in sterility lines, is essential ...
Hongming Guo, Yuyu Liang, Jianqun Lv, Xiangwen Su, Guangjun Ren, Fangyuan Gao   +5 more
doaj   +3 more sources

Fine-Mapping and Candidate Gene Analysis of qSERg-1b from O. glumaepatula to Improve Stigma Exsertion Rate in Rice

Agronomy
The stigma exsertion rate (SER) is one of the important factors affecting the seed production of hybrid rice. In the genus Oryza, wild rice species usually show higher SERs than cultivars.
Lixia Cao, Juncheng Dan, Xiaohui Li, Quanya Tan, Shaodi Zhang, Ruifeng Song, Xuelin Fu   +6 more
doaj   +3 more sources

Genome-wide association study of outcrossing in cytoplasmic male sterile lines of rice [PDF]

Scientific Reports, 2017
Stigma exsertion and panicle enclosure of male sterile lines are two key determinants of outcrossing in hybrid rice seed production. Based on 43,394 single nucleotide polymorphism markers, 217 cytoplasmic male sterile lines were assigned into two ...
Liang Guo, Fulin Qiu, Harish Gandhi, Suresh Kadaru, Erik Jon De Asis, Jieyun Zhuang, Fangming Xie   +6 more
doaj   +3 more sources

Targeted manipulation of grain shape genes effectively improves outcrossing rate and hybrid seed production in rice. [PDF]

Plant Biotechnol J, 2023
Summary Stigma exsertion rate (SER) of the male sterile line is a key limiting factor for hybrid seed production in rice. Although a large number of quantitative trait loci associated with SER have been reported, few genes have been molecularly cloned ...
Zhu X, Gou Y, Heng Y, Ding W, Li Y, Zhou D, Li X, Liang C, Wu C, Wang H, Shen R.   +10 more
europepmc   +3 more sources

Ploidy effects on the relationship between floral phenotype, reproductive investment, and fitness in an autogamous species complex [PDF]

American Journal of Botany, Volume 110, Issue 6, June 2023., 2023
This research was supported by a grant from the Spanish Ministry of Economy and Competitiveness (CGL2014‐59886‐JIN), the Organismo Autónomo de Parques Nacionales (Ref: 2415/2017), and the Ministry of Science and Innovation (PID2019‐111294GB‐I00/SRA/10 ...
Abdelaziz Mohamed, Mohamed, Ferrón, Camilo, García Muñoz, Ana, Muñoz Pajares, Antonio Jesús, Vaca‐Benito, Celia   +4 more
core   +2 more sources

Mapping of Quantitative Trait Loci for Exserted Stigma Rate By Using (ZS97B/MH63) Ril Population

Bangladesh Journal of Botany, 2021
For increasing pollination and seed set, stigma exsertion has been identified as a major component in hybrid rice. By using a recombinant inbred line (RIL) population derived from an important Indica rice cross between Zhenshan97 and Minghui63, a molecular marker-based analysis of quantitative trait loci (QTL) for stigma exsertion was performed.
Jiping Tong, Zhengshu Han, Aonan Han
openaire   +3 more sources

Genetic architecture of a pollinator shift and its fate in secondary hybrid zones of two Petunia species. [PDF]

BMC Biol, 2023
Background: Theory suggests that the genetic architecture of traits under divergent natural selection influences how easily reproductive barriers evolve and are maintained between species.
Binaghi M, Esfeld K, Mandel T, Freitas LB, Roesti M, Kuhlemeier C.   +5 more
europepmc   +6 more sources