Team:Cambridge-JIC/Background on Byrophytes

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<div align="center"><a href="https://2014.igem.org/wiki/index.php?title=Team:Cambridge-JIC/Background_on_Byrophytes&action=edit">Edit this page</a></div>
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<h3> Intro to Byrophytes and how to get in their clang</h3>
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<h3> Intro to Bryophytes and how to get in their clang</h3>
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Primitive plants are everywhere and together are called Byrophytes. Byrophytes are divided into three lineages. In evolutionary order these are:
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Primitive plants are everywhere and together are called Bryophytes. Bryophytes are divided into three lineages. In evolutionary order these are:
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<li>Marchantiaphyta or Liverworts (that's Poly!)</li>
<li>Marchantiaphyta or Liverworts (that's Poly!)</li>
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<li>then came Mosses (byrophyta)</li>
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<li>then came Mosses (bryophyta)</li>
<li>and finally the newer Hornworts or Anthocerotophyta.</li>
<li>and finally the newer Hornworts or Anthocerotophyta.</li>
<li>then came all the rest.</li>
<li>then came all the rest.</li>
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<h4>What makes Byrophytes special: Role-Reversal Plants and Nature's strange ways  </h4>
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<h4>What makes Bryophytes special: Role-Reversal Plants and Nature's strange ways  </h4>
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Byrophytes are united by unique features. These include:
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Bryophytes are united by unique features. These include:
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<ul>
<li>Sexual reproduction by spores - a fine line between bacteria, yeast and these plants</li>
<li>Sexual reproduction by spores - a fine line between bacteria, yeast and these plants</li>
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<p> Byrophytes are indeed often referred to as 'Up-Side-Down' or 'Role-Reversal' plants. Their life cycle is the opposite of most: We and other organisms spend our life as diploids: two sets of chromosomes, one from Dad, one from Mother. We specialize a set of cells in our reproductive organs which undergo meiosis (splitting of cells to form 2 cells with 1 copy of each gene), forming a haploid egg or sperm. When the sperm and the egg come together, they form a haploid organism which grows. And the cycle starts again.</p>
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<p> bryophytes are indeed often referred to as 'Up-Side-Down' or 'Role-Reversal' plants. Their life cycle is the opposite of most: We and other organisms spend our life as diploids: two sets of chromosomes, one from Dad, one from Mother. We specialize a set of cells in our reproductive organs which undergo meiosis (splitting of cells to form 2 cells with 1 copy of each gene), forming a haploid egg or sperm. When the sperm and the egg come together, they form a haploid organism which grows. And the cycle starts again.</p>
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<p> Byrophytes live most of their life as haploids (only have one copy of their genes!). A set of cells differentiate to become the ova and the sperm. When the haploid sperm reaches the haploid ova, they fuse, become diploid for a short time, and then undergo meiosis (split genome) to form two haploid plants! Intrigued by this oddity? Go to 'Marchantia's Life Cycle' to find out more.</p>
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<p> bryophytes live most of their life as haploids (only have one copy of their genes!). A set of cells differentiate to become the ova and the sperm. When the haploid sperm reaches the haploid ova, they fuse, become diploid for a short time, and then undergo meiosis (split genome) to form two haploid plants! Intrigued by this oddity? Go to 'Marchantia's Life Cycle' to find out more.</p>
<p>But let's not underestimate them...</p>
<p>But let's not underestimate them...</p>

Latest revision as of 17:44, 20 August 2014