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对番茄风味有积极贡献的番茄挥发性物质的全基因组关联图谱分析

Genome-Wide Association Mapping for Tomato Volatiles Positively Contributing to Tomato Flavor.

作者信息

Zhang Jing, Zhao Jiantao, Xu Yao, Liang Jing, Chang Peipei, Yan Fei, Li Mingjun, Liang Yan, Zou Zhirong

机构信息

State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University Yangling, China ; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture Yangling, China.

College of Forestry, Northwest A&F University Yangling, China.

出版信息

Front Plant Sci. 2015 Nov 27;6:1042. doi: 10.3389/fpls.2015.01042. eCollection 2015.

DOI:10.3389/fpls.2015.01042
PMID:26640472
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4661238/
Abstract

Tomato volatiles, mainly derived from essential nutrients and health-promoting precursors, affect tomato flavor. Taste volatiles present a major challenge for flavor improvement and quality breeding. In this study, we performed genome-wide association studies (GWAS) to investigate potential chromosome regions associated with the tomato flavor volatiles. We observed significant variation (1200x) among the selected 28 most important volatiles in tomato based on their concentration and odor threshold importance across our sampled accessions. Using 174 tomato accessions, GWAS identified 125 significant associations (P < 0.005) among 182 SSR markers and 28 volatiles (27 volatiles with at least one significant association). Several significant associations were co-localized in previously identified quantitative trait loci (QTL). This result provides new potential candidate loci affecting the metabolism of several volatiles.

摘要

番茄挥发物主要来源于必需营养素和促进健康的前体物质，影响番茄风味。味觉挥发物是风味改良和品质育种的主要挑战。在本研究中，我们进行了全基因组关联研究（GWAS），以调查与番茄风味挥发物相关的潜在染色体区域。基于我们采样材料中28种最重要挥发物的浓度和气味阈值重要性，我们观察到显著差异（1200倍）。使用174份番茄材料，GWAS在182个SSR标记和28种挥发物（27种挥发物至少有一个显著关联）之间鉴定出125个显著关联（P < 0.005）。几个显著关联共定位于先前鉴定的数量性状位点（QTL）。这一结果为影响几种挥发物代谢的新潜在候选基因座提供了依据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/97e3f937f1b0/fpls-06-01042-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/01c7fe76e768/fpls-06-01042-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/752faa9ae0eb/fpls-06-01042-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/433b3060df1a/fpls-06-01042-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/a73439d053d7/fpls-06-01042-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/97e3f937f1b0/fpls-06-01042-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/01c7fe76e768/fpls-06-01042-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/752faa9ae0eb/fpls-06-01042-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/433b3060df1a/fpls-06-01042-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/a73439d053d7/fpls-06-01042-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d36/4661238/97e3f937f1b0/fpls-06-01042-g0005.jpg

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