Understanding the genetic and molecular constitutions of heterosis for developing hybrid rice

杂种优势 生物 过度显性 混合的 不育 上位性 遗传学 生物技术 人口 双列杂交 基因 农学 社会学 人口学
作者
Yidan Ouyang,Xu Li,Qifa Zhang
出处
期刊:Journal of Genetics and Genomics [Elsevier]
卷期号:49 (5): 385-393 被引量:31
标识
DOI:10.1016/j.jgg.2022.02.022
摘要

The wide adoption of hybrid rice has greatly increased rice yield in the last several decades. The utilization of heterosis facilitated by male sterility has been a common strategy for hybrid rice development. Here, we summarize our efforts in the genetic and molecular understanding of heterosis and male sterility together with the related progress from other research groups. Analyses of F1 diallel crosses show that strong heterosis widely exists in hybrids of diverse germplasms, and inter-subspecific hybrids often display higher heterosis. Using the elite hybrid Shanyou 63 as a model, an immortalized F2 population design is conducted for systematic characterization of the biological mechanism of heterosis, with identification of loci controlling heterosis of yield and yield component traits. Dominance, overdominance, and epistasis all play important roles in the genetic basis of heterosis; quantitative assessment of these components well addressed the three classical genetic hypotheses for heterosis. Environment-sensitive genic male sterility (EGMS) enables the development of two-line hybrids, and long noncoding RNAs often function as regulators of EGMS. Inter-subspecific hybrids show greatly reduced fertility; the identification and molecular characterization of hybrid sterility genes offer strategies for overcoming inter-subspecific hybrid sterility. These developments have significant implications for future hybrid rice improvement using genomic breeding.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚子发布了新的文献求助10
1秒前
JamesPei应助光亮的凌寒采纳,获得10
1秒前
1秒前
搜集达人应助qin采纳,获得10
2秒前
3秒前
iiio0oiii发布了新的文献求助30
3秒前
哭泣恋风完成签到 ,获得积分10
4秒前
l991215y完成签到,获得积分10
5秒前
6秒前
调研昵称发布了新的文献求助30
7秒前
LeiX发布了新的文献求助10
7秒前
Wuuuu完成签到,获得积分10
11秒前
11秒前
miao发布了新的文献求助10
11秒前
momo发布了新的文献求助10
12秒前
NexusExplorer应助清脆野狼采纳,获得10
13秒前
13秒前
我的白起是国服完成签到 ,获得积分10
13秒前
14秒前
14秒前
15秒前
万能图书馆应助wuming7890采纳,获得10
16秒前
16秒前
orixero应助miao采纳,获得10
17秒前
17秒前
沐雨橙风发布了新的文献求助10
18秒前
特梅头发布了新的文献求助10
19秒前
SciGPT应助cc66采纳,获得10
19秒前
小蘑菇应助俭朴的玉兰采纳,获得10
19秒前
qin发布了新的文献求助10
20秒前
豆⑧发布了新的文献求助10
21秒前
21秒前
彭于晏应助舒心胜采纳,获得10
23秒前
刘岩完成签到,获得积分10
24秒前
25秒前
27秒前
cauliflower完成签到,获得积分10
27秒前
传奇3应助勤恳的猕猴桃采纳,获得10
27秒前
miao完成签到,获得积分10
27秒前
wuming7890发布了新的文献求助10
28秒前
高分求助中
Spray / Wall-interaction Modelling by Dimensionless Data Analysis 2000
Aspects of Babylonian celestial divination: the lunar eclipse tablets of Enūma Anu Enlil 500
Mathematics and Finite Element Discretizations of Incompressible Navier—Stokes Flows 500
India's foreign trade policy and its performance in the world economy 450
Structural Inorganic Chemistry 400
Dictionary of socialism 350
Mixed-anion Compounds 300
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3196147
求助须知:如何正确求助?哪些是违规求助? 2844979
关于积分的说明 8052363
捐赠科研通 2509522
什么是DOI,文献DOI怎么找? 1341808
科研通“疑难数据库(出版商)”最低求助积分说明 639282
邀请新用户注册赠送积分活动 608457