• Call for Social Sciences Papers
  • Sign-up for PNAS eTOC Alerts

In This Issue

Olive tree genome yields insights into oil biosynthesis

Olive tree. Image courtesy of Pixabay/Hans.

Cultivated varieties of olive trees are thought to have stemmed from oleaster (Olea europaea var. sylvestris), the wild precursor, in Asia Minor before reaching the Mediterranean, which serves as a home to an array of olive varieties. Turgay Unver et al. (pp. E9413–E9422) assembled and annotated the 1.48 Gbp draft genome sequence of oleaster, revealing signatures of ancient genetic events related to olive oil biosynthesis. Harboring an estimated 50,684 protein-coding genes, the oleaster genome exhibits signs of multiple ancient genome duplication events, notable among which are two events specific to the oleaster lineage that occurred around 28 and 59 million years ago. The pair of duplication events led to the expansion and functional diversification of genes involved in oil biosynthesis, potentially explaining the high content of oleic acid (75%), a major component in olive oil, compared with linoleic acid (5.5%); by comparison, the closely related sesame seed oil contains around 40% of each fatty acid. Reduced expression of FAD2 genes that results from naturally occurring RNA interference and heightened …

Online Impact

    <var id="UPyyYwe"><strike id="UPyyYwe"></strike></var>
    <ins id="UPyyYwe"></ins>
    <ins id="UPyyYwe"></ins>
    <cite id="UPyyYwe"><video id="UPyyYwe"></video></cite>
    <ins id="UPyyYwe"></ins><ins id="UPyyYwe"><span id="UPyyYwe"><cite id="UPyyYwe"></cite></span></ins>
    <var id="UPyyYwe"><span id="UPyyYwe"></span></var>
    <cite id="UPyyYwe"><video id="UPyyYwe"><var id="UPyyYwe"></var></video></cite>
    <cite id="UPyyYwe"></cite>
    <var id="UPyyYwe"></var>
    <cite id="UPyyYwe"></cite>
    <ins id="UPyyYwe"></ins>
    <cite id="UPyyYwe"><span id="UPyyYwe"></span></cite><cite id="UPyyYwe"></cite>
    <var id="UPyyYwe"><video id="UPyyYwe"><menuitem id="UPyyYwe"></menuitem></video></var>
    <var id="UPyyYwe"><span id="UPyyYwe"></span></var>
    <ins id="UPyyYwe"></ins>
    <ins id="UPyyYwe"></ins><var id="UPyyYwe"><span id="UPyyYwe"></span></var>
    <var id="UPyyYwe"><span id="UPyyYwe"></span></var>
    <cite id="UPyyYwe"></cite>
    <var id="UPyyYwe"><strike id="UPyyYwe"><menuitem id="UPyyYwe"></menuitem></strike></var>
    <ins id="UPyyYwe"></ins>
    <cite id="UPyyYwe"></cite><cite id="UPyyYwe"></cite>
  • 8686301327 2018-02-22
  • 1879481326 2018-02-22
  • 9332351325 2018-02-22
  • 7384141324 2018-02-22
  • 8918371323 2018-02-22
  • 7638311322 2018-02-22
  • 9654151321 2018-02-22
  • 1588961320 2018-02-22
  • 5712971319 2018-02-22
  • 5536211318 2018-02-22
  • 4417061317 2018-02-22
  • 3024201316 2018-02-21
  • 4658931315 2018-02-21
  • 3216561314 2018-02-21
  • 1965251313 2018-02-21
  • 970811312 2018-02-21
  • 609011311 2018-02-21
  • 3219131310 2018-02-21
  • 613261309 2018-02-21
  • 6972481308 2018-02-21