apomixis वाक्य
उदाहरण वाक्य
मोबाइल
- This grass often reproduces by apomixis, producing seeds without diploid, tetraploid, or hexaploid.
- Indeed, he and others said, apomixis could help seed companies by speeding up plant breeding.
- There are different forms of apomixis and the same plant can exhibit both sexual and asexual reproduction.
- Apomixis, the development of an embryo without the occurrence of fertilization, is particularly common among ferns.
- These are the first characterised genes involved in apomixis, a method of making seed without the father.
- Although apomixis may occur in some cultivars, rambutan, like lychee, is dependent upon insects for pollination.
- Although the evolutionary advantages of sexual reproduction are lost, apomixis can pass along traits fortuitous for evolutionary fitness.
- The sweet orange reproduces asexually ( apomixis through nucellar embryony ); varieties of sweet orange arise through mutations.
- But others counter that because of the ease of creating hybrids with apomixis, crop variability could actually be increased.
- Apomixis would cut the time needed to evaluate new lines, and dramatically reduce the cost of hybrid seed production.
- In apomixis, the process that halves the number of chromosomes in a female cell prior to fertilization is bypassed.
- Apomixis can also happen in a seed, producing a seed that contains an embryo genetically identical to the parent.
- Apomixis ( asexual reproduction from non-fertilized seeds ) appeared common in " P . orientalis ".
- Some authors included all forms of asexual reproduction within apomixis, but that generalization of the term has since died out.
- These include plants that reproduce vegetatively by runners or bulbils, or which produce seeds without embryo fertilization ( apomixis ).
- This bacterium causes functional apomixis in the mites, so that a female produces only offspring that are identical to her.
- But apomixis could also represent a threat to the seed companies, changing the balance of power between the companies and farmers.
- "Apomixis is a winner from all perspectives, " says Brian Johnson, an adviser of the British government.
- Elsewhere, John Carman of Utah State University in Logan claims to have found a way of introducing apomixis without genetic engineering.
- Apomixis and parthenogenesis, types of asexual reproduction, also result in true breeding, although the organisms are usually not homozygous.
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