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QTL Mapping in Three Connected Populations Reveals a Set of Consensus Genomic Regions for Low Temperature Germination Ability in Zea mays L.

Overview of attention for article published in Frontiers in Plant Science, January 2018
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Title
QTL Mapping in Three Connected Populations Reveals a Set of Consensus Genomic Regions for Low Temperature Germination Ability in Zea mays L.
Published in
Frontiers in Plant Science, January 2018
DOI 10.3389/fpls.2018.00065
Pubmed ID
Authors

Xuhui Li, Guihua Wang, Junjie Fu, Li Li, Guangyao Jia, Lisha Ren, Thomas Lubberstedt, Guoying Wang, Jianhua Wang, Riliang Gu

Abstract

Improving seed vigor in response to cold stress is an important breeding objective in maize that allows early sowing. Using two cold tolerant inbred lines 220 and P9-10 and two susceptible lines Y1518 and PH4CV, three connected F2:3populations were generated for detecting quantitative trait locus (QTL) related to seed low-temperature germination ability. At 10°C, two germination traits (emergence rate and germination index) were collected from a sand bed and three seedling traits (seedling root length, shoot length, and total length) were extracted from paper rolls. Significant correlations were found among all traits in all populations. Via single-population analysis, 43 QTL were detected with explained phenotypic variance of 0.62%∼39.44%. Seventeen QTL explained more than 10% phenotypic variance; of them sixteen (94.12%) inherited favorable alleles from the tolerant lines. After constructing a consensus map, three meta-QTL (mQTL) were identified to include at least two initial QTL from different populations.mQTL1-1included seven initial QTL for both germination and seedling traits; with three explaining more than 30% phenotypic variance.mQTL2-1andmQTL9-1covered two to three initial QTL. The favorable alleles of the QTL within these three mQTL regions were all inherited from the tolerant line 220 and P9-10. These results provided a basis for cloning of genes underlying the mQTL regions to uncover the molecular mechanisms of maize cold tolerance during germination.

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Geographical breakdown

Country Count As %
Unknown 36 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 28%
Researcher 4 11%
Student > Doctoral Student 2 6%
Student > Bachelor 2 6%
Other 2 6%
Other 4 11%
Unknown 12 33%
Readers by discipline Count As %
Agricultural and Biological Sciences 21 58%
Unspecified 1 3%
Business, Management and Accounting 1 3%
Biochemistry, Genetics and Molecular Biology 1 3%
Medicine and Dentistry 1 3%
Other 1 3%
Unknown 10 28%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 March 2018.
All research outputs
#17,932,482
of 23,025,074 outputs
Outputs from Frontiers in Plant Science
#12,249
of 20,556 outputs
Outputs of similar age
#309,654
of 440,218 outputs
Outputs of similar age from Frontiers in Plant Science
#307
of 447 outputs
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