国内英语资讯:Chinese scientists succeed in developing clonal seeds from hybrid rice
<p><span word="HANGZHOU">HANGZHOU</span>, <span word="Jan">Jan</span>. 5-- <span word="Chinese">Chinese</span> <span word="scientists">scientists</span> <span word="have">have</span> <span word="succeeded">succeeded</span> <span word="in">in</span> <span word="developing">developing</span> <span word="clonal">clonal</span> <span word="seeds">seeds</span> <span word="from">from</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span>, <span word="said">said</span> <span word="an">an</span> <span word="online">online</span> <span word="paper">paper</span> <span word="published">published</span> <span word="in">in</span> <span word="Nature">Nature</span> <span word="Biotechnology">Biotechnology</span> <span word="Friday">Friday</span> <span word="night">night</span>.</p><p><span word="The">The</span> <span word="team">team</span>, <span word="led">led</span> <span word="by">by</span> <span word="Wang">Wang</span> <span word="Kejian">Kejian</span>, <span word="from">from</span> <span word="the">the</span> <span word="China">China</span> <span word="National">National</span> <span word="Rice">Rice</span> <span word="Research">Research</span> <span word="Institute">Institute</span> <span word="and">and</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Agricultural">Agricultural</span> <span word="Sciences">Sciences</span>, <span word="conducted">conducted</span> <span word="simultaneous">simultaneous</span> <span word="genome">genome</span> <span word="engineering">engineering</span> <span word="of">of</span> <span word="meiosis">meiosis</span> <span word="and">and</span> <span word="fertilization">fertilization</span> <span word="genes">genes</span> <span word="in">in</span> <span word="developing">developing</span> <span word="the">the</span> <span word="clonal">clonal</span> <span word="seeds">seeds</span>.</p><p><span word="Usually">Usually</span>, <span word="beneficial">beneficial</span> <span word="phenotypes">phenotypes</span> <span word="are">are</span> <span word="lost">lost</span> <span word="in">in</span> <span word="subsequent">subsequent</span> <span word="generations">generations</span> <span word="owing">owing</span> <span word="to">to</span> <span word="genetic">genetic</span> <span word="segregation">segregation</span>. <span word="But">But</span> <span word="with">with</span> <span word="the">the</span> <span word="clonal">clonal</span> <span word="seeds">seeds</span>, <span word="the">the</span> <span word="heterosis">heterosis</span>, <span word="or">or</span> <span word="hybrid">hybrid</span> <span word="vigor">vigor</span> <span word="of">of</span> <span word="the">the</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span>, <span word="can">can</span> <span word="be">be</span> <span word="passed">passed</span> <span word="on">on</span> <span word="to">to</span> <span word="produce">produce</span> <span word="high">high</span>-<span word="yielding">yielding</span> <span word="crops">crops</span>.</p><p>"<span word="The">The</span> <span word="success">success</span> <span word="has">has</span> <span word="proved">proved</span> <span word="the">the</span> <span word="feasibility">feasibility</span> <span word="of">of</span> <span word="apomixis">apomixis</span> <span word="for">for</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span>, <span word="which">which</span> <span word="is">is</span> <span word="significant">significant</span> <span word="theoretically">theoretically</span>. <span word="I">I</span> <span word="hope">hope</span> <span word="that">that</span> <span word="with">with</span> <span word="their">their</span> <span word="further">further</span> <span word="research">research</span>, <span word="the">the</span> <span word="seeds">seeds</span> <span word="will">will</span> <span word="be">be</span> <span word="put">put</span> <span word="into">into</span> <span word="production">production</span> <span word="soon">soon</span>," <span word="said">said</span> <span word="Yuan">Yuan</span> <span word="Longping">Longping</span>, <span word="the">the</span> "<span word="father">father</span> <span word="of">of</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span>."</p><p><span word="Statistics">Statistics</span> <span word="show">show</span> <span word="that">that</span> <span word="China">China</span> <span word="has">has</span> <span word="planted">planted</span> 16 <span word="million">million</span> <span word="hectares">hectares</span> <span word="of">of</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span>, <span word="about">about</span> 57 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="total">total</span> <span word="planting">planting</span> <span word="area">area</span> <span word="of">of</span> <span word="rice">rice</span> <span word="across">across</span> <span word="the">the</span> <span word="country">country</span>. <span word="The">The</span> <span word="annual">annual</span> <span word="output">output</span> <span word="of">of</span> <span word="hybrid">hybrid</span> <span word="rice">rice</span> <span word="is">is</span> <span word="about">about</span> 2.5 <span word="million">million</span> <span word="tonnes">tonnes</span>.</p>
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