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The oil palm SHELL gene controls oil yield and encodes a homologue of SEEDSTICK

机译：油棕SHELL基因控制油产量并编码SEEDSTICK的同源物

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摘要

A key event in the domestication and breeding of the oil palm Elaeis guineensis was loss of the thick coconut- like shell surrounding the kernel. Modern E. guineensis has three fruit forms, dura (thick-shelled), pisifera (shell-less) and tenera (thin-shelled), a hybrid between dura and pisifera~(1-4). The pisifera palm is usually female-sterile. The tenera palm yields far more oil than dura, and is the basis for commercial palm oil production in all of southeast Asia~5. Here we describe the mapping and identification of the SHELL gene responsible for the different fruit forms. Using homozygosity mapping by sequencing, we found two independent mutations in the DNA-binding domain of a homologue of the MADS-box gene SEEDSTICK (STK, also known as AGAMOUS-LIKE 11), which controls ovule identity and seed development in Arabidopsis. The SHELL gene is responsible for the tenera phenotype in both cultivated and wild palms from sub-Saharan Africa, and our findings provide a genetic explanation for the single gene hybrid vigour (or heterosis) attributed to SHELL, via heterodimerization. This gene mutation explains the single most important economic trait in oil palm, and has implications for the competing interests of global edible oil production, biofuels and rainforest conservation~6.
机译：油棕杜鹃（Elaeis guineensis）驯化和繁殖的关键事件是失去了围绕果仁的椰子状厚壳。现代E. guineensis有三种果实形式，硬脑膜（厚壳），白桦（无壳）和特内里拉（薄壳），是硬脑膜和白桦（1-4）之间的杂种。掌s通常是雌性不育的。硬尾棕榈油的产量远高于硬脑膜，是整个东南亚地区5的商业棕榈油生产的基础。在这里，我们描述了负责不同水果形式的SHELL基因的定位和鉴定。通过测序使用纯合性作图，我们在MADS-box基因SEEDSTICK（STK，也称为AGAMOUS-LIKE 11）的同系物的DNA结合结构域中发现了两个独立的突变，该基因控制拟南芥的胚珠身份和种子发育。 SHELL基因负责撒哈拉以南非洲地区的栽培棕榈和野生棕榈中的腱鞘表型，我们的发现为通过异源二聚化作用赋予SHELL的单基因杂种优势（或杂种优势）提供了遗传学解释。该基因突变解释了油棕中最重要的单一经济特征，并对全球食用油生产，生物燃料和雨林保护的竞争利益产生了影响〜6。

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  • 来源
    《Nature》 |2013年第7462期|340-344|共5页
  • 作者

    Rajinder Singh; Eng-Ti Leslie Low; Leslie Cheng-Li Ooi; Meilina Ong-Abdullah; Ngoot-Chin Ting; Jayanthi Nagappan; Rajanaidu Nookiah; Mohd Din Amiruddin; Rozana Rosli; Mohamad Arif Abdul Manaf; Kuang-Lim Chan; Mohd Amin Halim; Norazah Azizi; Nathan Lakey; Steven W. Smith; Muhammad A. Budiman; Michael Hogan; Blaire Bacher; Andrew Van Brunt; Chunyan Wang; Jared M. Ordway; Ravigadevi Sambanthamurthi; Robert A. Martienssen;

  • 作者单位

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA;

    Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Bam Bangi, 43000 Kajang, Selangor, Malaysia;

    Howard Hughes Medical Institute-Gordon and Betty Moore Foundation, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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