linkedin post 2017-11-14 04:52:06

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ONE HOUSE TO TWO HOUSES. “As had been demonstrated earlier in maize, fixation of a null mutation at one locus in a monecious population set the stage for segregation of a null mutation at a second locus, resulting in dioecy and single-gene sex determination.” https://lnkd.in/gKA5C8N View in LinkedIn
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linkedin post 2017-11-15 05:50:27

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TWO EVENTS. “Phylogenetic analyses suggest that dioecy evolved once or potentially twice within a single clade in the Asparagus phylogeny, coincident with increases in genome size and repetitive DNA content, as well as a range expansion from southern Africa into northern Africa and Europe.” https://lnkd.in/gKA5C8N View in LinkedIn
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linkedin post 2017-11-15 05:54:22

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VIRAL REMAINS OR GENOME DUPLICATIONS. “Earlier work suggested that the increased genome size may have been due to increased rates of retrotransposon accumulation in diecious Asparagus genomes, but synteny analysis of the reference genome assembly revealed evidence for at least two ancient whole genome duplications.” https://lnkd.in/gKA5C8N View in LinkedIn
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linkedin post 2017-11-15 05:58:00

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TWO GENE SYSTEM. “Male and female organs are both initiated in developing garden asparagus flower buds, and differences in the timing of cessation of male pistil development and degeneration of female anthers are suggestive of a two-gene sex determination system.” https://lnkd.in/gKA5C8N View in LinkedIn
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