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Related Concept Videos

Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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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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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 chance to...

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Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques
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Published on: April 12, 2018

Integrating two patterning processes in the flower.

Simon van Mourik1, Aalt D J van Dijk, Gerco C Angenent

  • 1Biometris, Plant Sciences Group, Wageningen University and Research Center; Wageningen, The Netherlands. simon.vanmourik@wur.nl

Plant Signaling & Behavior
|May 15, 2012
PubMed
Summary
This summary is machine-generated.

This study integrates MADS-box transcription factors and auxin dynamics to model floral organ patterning. Computational models reveal how these elements define the floral body plan.

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Area of Science:

  • Plant developmental biology
  • Computational modeling
  • Genetics

Background:

  • Spatial arrangement of floral organs is crucial for flower development.
  • Floral organ identity is regulated by MADS-box transcription factors.
  • Floral organ positioning is influenced by the plant hormone auxin dynamics.

Purpose of the Study:

  • To integrate MADS-box transcription factor networks and auxin dynamics into computational models.
  • To gain insight into how these networks define the floral body plan.
  • To explore hypothetical interactions within MADS and auxin regulatory networks in floral organ patterning.

Main Methods:

  • Developing computational models based on experimentally known interactions.
  • Integrating data on MADS-box gene expression.
  • Integrating data on auxin dynamics and signaling pathways.

Main Results:

  • The study is focused on the development of a computational model.
  • The model integrates known experimental interactions between MADS and auxin.
  • The model aims to simulate floral organ patterning.

Conclusions:

  • Computational models integrating MADS and auxin networks are valuable tools.
  • These models can elucidate the mechanisms underlying floral body plan formation.
  • Further exploration of hypothetical interactions can advance our understanding of plant development.