检索结果-南通市图书馆

Assessment of Tolerance of Different Varieties of hulless barley Seedlings to Low-Temperature Stress

Phyton-International Journal of Experimental Botany 2024年第11期93卷 2755-2766页

作者： Ziao Wang Likun An Yongmei Cui Yixiong Bai Guangping Du Kunlun Wu Academy of Agricultural and Forestry Sciences Qinghai UniversityXining810016China State key laboratory of Plateau Ecology and Agriculture Qinghai UniversityXining810016China qinghai key laboratory of hulless barley genetics and breeding Xining810016China qinghai Subcenter of National hulless barley Improvement Xining810016China

In this study,we analyzed the agronomic and physiological indicators of the leaves and roots of 60 hulless barley varieties under low-temperature treatment,identiﬁed the crucial indicators that can reﬂect the ability of hulless barley to tolerate low-temperature,and evaluated the ability of different hulless barley varieties to tolerate *** results indicated signiﬁcant differences in the agronomic and physiological indicators of 60 hul-less barley varieties subjected to low-temperature *** of the agronomic indicators signiﬁcantly decreased,whereas most of the physiological indicators signiﬁcantly ***,the magnitude of changes in each agronomic and physiological indicator differed among the varieties.A comprehensive analysis of the agronomic and physiological indicators revealed that the antioxidant enzyme activity,soluble sugar(SSC)and free proline(FPRO)could be used as a crucial indicator to evaluate the low-temperature tolerance of hulless *** with those of agronomic indicators,the physiological indicators of the hulless variety barley better reﬂected its resistance to low-temperature ***ﬁnal comprehensive evaluation showed that Himalaya 22 was the most tolerant to low-temperature,whereas Changmanglan qingke was the most sensitive to *** this study,we assessed various agronomic and physiological indicators of hulless barley plants under low-temperature *** also identiﬁed essential agronomic and physiological indicators for screening low-temperature-tolerant *** research results thus provide a reference for screening low-tem-perature-tolerant hulless barley resources.

关键词： Agronomic and physiological indicators low temperature stress qingke seedling stage

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genome-Wide Identification of Candidate Genes Associated with β-glucan Traits in a Hulled and hulless barley (Hordeum vulgare L.) Population

引用

Phyton-International Journal of Experimental Botany 2020年第4期89卷 987-997页

作者： Longhua Zhou Ting He Guimei Guo Jing Li Ruiju Lu Yingbo Li Chenghong Liu Shanghai Academy of Agricultural Sciences Shanghai201106China Shanghai key laboratory of Agricultural genetics and breeding Shanghai201106China

barley grain is a valuable source ofβ-glucan,which is an important component of dietary fiber with significant human health *** the genetic basis ofβ-glucan biosynthesis has been widely studied,a genome-wide association study(GWAS)is still required for a scan of the candidate genes related to the complex quantitative trait based on the high-quality barley reference *** this study,a GWAS was conducted using a population composed of 87 barley landraces(39 hulled and 48 hulless,β-glucan from 2.07%to 6.56%)with 191,098 nucleotide polymorphisms(SNPs)markers to cover the chromosomes with the highest *** population was divided into four sub-populations(POP1~POP4),and theβ-glucan content in POP2 was significantly higher than that in other groups,in which most of the hulless barley landraces are from qinghai-Tibet Plateau in *** seven SNP markers identified by GWAS,two(SNP2 and SNP3)of them showed positive correlation toβ-glucan trait and the remaining five(SNP1,SNP4,SNP5,SNP6 and SNP7)showed the negative *** candidate genes linked to SNP7,HORVU7Hr1G000320 and HORVU7Hr1G000040,belong to the nucleotide triphosphate hydrolase super-family which is probable to affect the activities ofβ-glucan *** candidate gene associated with SNP1,HORVU1Hr1G000010,is possibly involved in sugar *** conclusion,our results provide new insights into the genetic basis ofβ-glucan accumulation in barley grains,and the discovery of new SNP markers distributed in each chromosome and the associated candidate genes will be valuable for the breeding of functional barley varieties with high β-glucan.

关键词： GWAS β-glucan SNP barley grains

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Most Tibetan weedy barleys originated via recombination between Btr1 and Btr2 in domesticated barley

引用

Plant Communications 2024年第5期5卷 163-175页

作者： Guangqi Gao Luxi Yan Yu Cai Yu Guo Congcong Jiang Qiang He Sarah Tasnim Zongyun Feng Jun Liu Jing Zhang Takao Komatsuda Martin Mascher Ping Yang State key laboratory of Crop Gene Resources and breeding/key laboratory of Grain Crop Genetic Resources Evaluation and Utilization(MARA)/Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China College of Agronomy Sichuan Agricultural UniversityChengdu 611130China Leibniz Institute of Plant genetics and Crop Plant Research 06466 SeelandGermany Crop Research Institute Shandong Academy of Agricultural SciencesJinan 250100China

Tibetan weedy barleys reside at the edges of qingke(hulless barley)fields in Tibet(Xizang).The spikes of these weedy barleys contain or lack a brittle rachis,with either two-or six-rowed spikes and either hulled or hulless grains at *** the brittle rachis trait of Tibetan weedy barleys is similar to that of wild barley(Hordeum vulgare *** Thell.),these plants share genetic similarity with domesticated *** origin of Tibetan weedy barleys continues to be ***,we show that most Tibetan weedy barleys originated from cross-pollinated hybridization of domesticated barleys,followed by hybrid self-pollination and recombination between Non-brittle rachis 1(btr1)and 2(btr2).We discovered the specific genetic ancestry of these weedy barleys in South Asian *** weedy barleys exhibit lower genetic diversity than wild and Chinese landraces/cultivars and share a close relationship with qingke,genetically differing from typical eastern and western barley *** classified Tibetan weedy barleys into two groups,brittle rachis(BR)and non-brittle rachis(NBR);these traits align with the haplotypes of the btr1 and btr2 *** wild barleys carry haplotype combinations of Btr1 and Btr2,each showing lower proportions in a population,the recombinant haplotype BTR2H8+BTR1H24 is predominant in the BR *** block analysis based on whole-genome sequencing revealed two recombination breakpoints,which are present in 80.6%and 16.8%of BR acces-sions according to marker-assisted *** events between wild and domesticated barley were rarely *** support the notion that Tibetan weedy barleys originated via recom-bination between Btr1 and Btr2 in domesticated barley.

关键词： Tibetan weedy barley agriocrithon de-domestication out-pollination recombination brittle rachis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：