The Dynamic Nature of Apomixis in the Angiosperms

@article{Whitton2008TheDN,
  title={The Dynamic Nature of Apomixis in the Angiosperms},
  author={Jeannette Whitton and Christopher J. Sears and Eric J Baack and Sarah Perin Otto},
  journal={International Journal of Plant Sciences},
  year={2008},
  volume={169},
  pages={169 - 182}
}
Apomixis, the asexual production of seed, is a trait estimated to occur in fewer than 1% of flowering plant species, with an uneven distribution among lineages. In the past decade, targeted research efforts have aimed at clarifying the genetic basis of apomixis, with the goal of engineering or breeding apomictic crops. Recent work suggests a simple genetic basis for apomixis, but it also indicates that natural populations of apomicts are much more complex than is often assumed. For example, in… 

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DOES HYBRIDIZATION DRIVE THE TRANSITION TO ASEXUALITY IN DIPLOID BOECHERA?

With few exceptions, diploid apomicts exhibited markedly high levels of heterozygosity resulting from the combination of disparate genomes, which strongly suggests that most apomictic diploids’ lineages are of hybrid origin, and that the genomic consequences of hybridization allow for the transition to gametophytic apomixis in this genus.
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