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OLD GENE, NEW FUNCTION. "One finding which may result from this work will be the way in which genomes have evolved to reassign genes (or duplicate copies of them) to new functions." https://lnkd.in/gb3zS32 View in LinkedIn

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

GENE DOSAGE. "Although the notion that dioecy may be controlled by simple mutations affecting male or female functions may hold true for some simple plant systems, the situation is clearly more complicated in the case of those dioecious plants which have developed sex chromosomes of the X to autosome dosage type, where dosage sensing mechanisms involving genes analogous to the numerator and denominator genes found in drosophila have developed." https://lnkd.in/gb3zS32 View in LinkedIn

GENE DOUBLING. “The haploid genome size of diecious Asparagus species has been characterized as being nearly double that of hermaphroditic species.” https://lnkd.in/gKA5C8N View in LinkedIn

EXAPTED GENES. "It is likely that sex determining genes may be present in the genomes of hermaphroditic plants, but may have quite different functions in some plants." https://lnkd.in/gb3zS32 View in LinkedIn

'Space nation' Asgardia takes off http://www.cnn.com/style/article/asgardia-satellite-launch/index.html View in LinkedIn

BLACK BOX. "Efforts to understand the molecular basis of sex determination in dioecious plant species have, to date, not been successful." https://lnkd.in/gb3zS32 View in LinkedIn

DIFFICULT IDENTITY. "In dioecious plants cultivated for fruit or seed it is often difficult to identify females at an early stage of growth." https://lnkd.in/gb3zS32 View in LinkedIn

ASPARAGUS SEX GENE CONCLUSION. “The work done to date suggests that single-gene sex determination systems may evolve following fixation of null mutations in unlinked but interacting sex-specification genes, or as we show here for garden asparagus, two or more linked genes may act independently during development of female or male reproductive pathways.” https://lnkd.in/gKA5C8N View in LinkedIn

SEXUAL SYSTEM DIVERSITY. “Given the immense diversity in sexual systems across the angiosperms and numerous independent origins of dioecy, we expect different genetic factors will be regulating male and female function in unrelated dioecious lineages.” https://lnkd.in/gKA5C8N View in LinkedIn