相关实验视频

Updated: Jul 13, 2025

Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds
08:05

Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds

Published on: June 7, 2013

17.8K

父亲印记的LATE-FLOWERING2转录因子有助于在小麦中对父子过度插曲的杂交障碍

Guanghui Yang1, Man Feng1, Kuohai Yu1

  • 1State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.

Journal of integrative plant biology
|October 17, 2023
PubMed
概括

在小麦中,因父交叉过多导致种子发育不良而造成的交叉杂交是具有挑战性的. 基因组印记,特别是TaLFL2基因,有助于这些障碍,解释了为什么在育种中偏爱母乳过量交叉.

关键词:
印记是为了印记.交叉式交叉式交叉式交叉式交叉式小麦小麦小麦小麦小麦小麦小麦.

更多相关视频

Determination of DNA Methylation of Imprinted Genes in Arabidopsis Endosperm09:23

Determination of DNA Methylation of Imprinted Genes in Arabidopsis Endosperm

Published on: January 28, 2011

17.5K
Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo12:36

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo

Published on: January 14, 2016

20.5K

相关概念视频

Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.6K
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...
23.4K
Crossing Over01:34

Crossing Over

Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
147.0K
Dihybrid Crosses01:18

Dihybrid Crosses

Overview
75.0K
Meiosis I03:09

Meiosis I

Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
40.8K
Position-effect Variegation02:32

Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
6.3K