相关实验视频

Updated: Jun 7, 2025

A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines
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A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines

Published on: January 3, 2014

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鉴定和分离两个密切相关的主要QTL,用于在先进的玉米-teosinte种群中的内核行号

Jixing Ni1, Dengguo Tang1,2, Zhengjie Chen1,3

  • 1Maize Research Institute, Sichuan Agricultural University, No.211 Huiming Road, Wenjiang District, Chengdu, 611130, Sichuan, China.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
|November 18, 2024
PubMed
概括

研究人员在染色体2上发现了两种新的基因位置,qKRN2-1和qKRN2-2,这些基因位置显著影响玉米核行号 (KRN). 一个候选基因,Zm00001d002989,被确定为其在增加KRN中的作用,为增强玉米育种提供了潜力.

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相关概念视频

Trihybrid Crosses02:27

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
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Dihybrid Crosses01:18

Dihybrid Crosses

Overview
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Monohybrid Crosses01:20

Monohybrid Crosses

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Chi-square Analysis02:46

Chi-square Analysis

The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
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Law of Segregation01:49

Law of Segregation

When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
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