Genetic analysis and candidate gene identification of salt tolerance-related traits in maize

生物 鉴定(生物学) 遗传学 基因 候选基因 遗传分析 生物技术 数量性状位点 植物
作者
Hui Fang,Xiuyi Fu,Heng Ge,Mengxue Jia,Jie Ji,Yizhou Zhao,Zijian Qu,Ziqian Cui,Aixia Zhang,Yuandong Wang,Ping Li,Baohua Wang
出处
期刊:Journal of Integrative Agriculture [Elsevier BV]
标识
DOI:10.1016/j.jia.2024.02.009
摘要

Soil salinization poses a threat to maize production worldwide. The genetic mechanism of salt tolerance in maize is not well understood. Therefore, identification of the genetic components underlying salt tolerance in maize is of importance. In the current study, a teosinte-maize BC2F7 population was used to investigate the genetic basis of 21 salt tolerance-related traits. In total, 125 QTLs were detected by using a high-density genetic bin map, with 1 to 5 QTLs explaining 6.05-32.02% of the phenotypic variation for each trait. The total phenotypic variation explained (PVE) by all detected QTLs ranged from 6.84 to 63.88% for each trait. Of all 125 QTLs, only three were major QTLs distributed in 2 genomic regions on chromosome 6, which were involved in 3 salt tolerance-related traits. In addition, 10 pairs of epistatic QTLs with additive effects were detected for 8 traits, explaining 0.9 to 4.44% of the phenotypic variation. Furthermore, 18 QTL hotspots affecting 3-7 traits were identified. In one hotspot (L5), a gene cluster consisting of 4 genes (ZmNSA1, SAG6, ZmCLCg, and ZmHKT1;2) was found, suggesting the involvement of multiple pleiotropic genes. Finally, two important candidate genes, Zm00001d002090 and Zm00001d002391, were verified to be associated with salt tolerance-related traits by a combination of linkage and marker-trait association analysis. Zm00001d002090 encodes a calcium-dependent lipid-binding (CaLB domain) family protein, which may function as a Ca2+ sensor for transmitting the salt stress signal downstream, while Zm00001d002391 encodes a ubiquitin-specific protease belonging to the C19-related subfamily. Our findings provide valuable insights into the genetic basis of salt tolerance-related traits and a theoretical foundation for breeders to enhance salt-tolerant maize varieties.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
内向南风完成签到 ,获得积分10
1秒前
香蕉觅云应助科研通管家采纳,获得10
2秒前
小马甲应助科研通管家采纳,获得10
2秒前
充电宝应助科研通管家采纳,获得10
2秒前
2秒前
2秒前
顾矜应助科研通管家采纳,获得10
3秒前
JamesPei应助科研通管家采纳,获得10
3秒前
隐形曼青应助科研通管家采纳,获得10
3秒前
英姑应助科研通管家采纳,获得10
3秒前
充电宝应助科研通管家采纳,获得10
3秒前
Maestro_S应助科研通管家采纳,获得10
3秒前
wanci应助科研通管家采纳,获得10
3秒前
Owen应助科研通管家采纳,获得10
3秒前
斯文败类应助科研通管家采纳,获得30
3秒前
3秒前
高高亿先应助科研通管家采纳,获得10
3秒前
烟花应助科研通管家采纳,获得10
3秒前
3秒前
ding应助科研通管家采纳,获得10
3秒前
1sunpf完成签到,获得积分10
3秒前
3秒前
3秒前
3秒前
脑洞疼应助科研通管家采纳,获得10
3秒前
spf完成签到,获得积分10
4秒前
荒野风发布了新的文献求助10
4秒前
luxkex完成签到,获得积分10
4秒前
4秒前
奶黄包发布了新的文献求助10
4秒前
有求必_应完成签到,获得积分10
5秒前
6秒前
ShuY完成签到,获得积分10
6秒前
careyzhou发布了新的文献求助10
6秒前
Ran-HT完成签到,获得积分10
7秒前
开小森发布了新的文献求助10
8秒前
科研通AI2S应助荒野风采纳,获得10
8秒前
闫木木完成签到,获得积分10
9秒前
邪恶青年完成签到,获得积分10
9秒前
xuan完成签到,获得积分10
9秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 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 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038426
求助须知:如何正确求助?哪些是违规求助? 3576119
关于积分的说明 11374556
捐赠科研通 3305834
什么是DOI,文献DOI怎么找? 1819339
邀请新用户注册赠送积分活动 892678
科研通“疑难数据库(出版商)”最低求助积分说明 815029