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首页> 外文期刊>Industrial Crops and Products >Significant variation for seed oil content, fatty acid profile, and seed weight in natural populations of field pennycress (Thlaspi arvense L.)
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Significant variation for seed oil content, fatty acid profile, and seed weight in natural populations of field pennycress (Thlaspi arvense L.)

机译：种子油含量，脂肪酸谱和种子重量的显着变异，在田间手段的自然群体中（Thlaspi Arvense L.）

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摘要

Increasing oil content and altering the fatty acid profile of the oilseed cover crop, field pennycress (Thlaspi arvense L.), would improve its profitability and functionality as a biodiesel, and possibly allow its entry into the industrial and edible oil markets. However, plant breeders know little about the amount of existing variation for these traits. To make gains in selection using traditional plant breeding to meet these objectives, heritable variation is required for traits of interest. Reported here is the characterization of a collection of 41 winter type pennycress accessions from the United States Department of Agriculture (USDA) National Plant Germplasm System (NPGS) and wild selections. The collection was grown at three Minnesota locations in 2014-2015 and surveyed for total oil percentage, fatty acid profile, and hundred seed weight. Significant variation (p & 0.001) was detected among the accessions for all traits surveyed. Coupled with high broad sense heritability (average for all traits: H-plot(2)=0.62 and H-entry(2)=0.88), results indicate potential for effective selection within this collection in the environments tested. Although significant, no extreme variation was found, suggesting that mutagenesis or additional germplasm may be necessary to make desired alterations. The effect of location was significant for nine of twelve traits, and accession by location interaction in eight of twelve, showing that both overall and relative performance of the accessions were variable across locations.
机译：增加油含量和改变油籽覆盖作物的脂肪酸曲线，现场Pennycress（Thlaspi Arvense L.）将改善其作为生物柴油的盈利能力和功能，并可能进入工业和食用油市场。然而，植物育种者对这些特征的现有变化量很少了解。在使用传统植物育种来满足这些目标的选择中进行增益，需要遗传性的变化来进行感兴趣的特征。这里报告的是来自美国农业部（USDA）国家植物种质系统（NPGS）和野生选择的41冬季型佩尼克斯加入的集合。该系列在2014 - 2015年的三个明尼苏达地区种植，并为总油百分比，脂肪酸型材和百种子重量进行调查。在调查的所有特征的过程中检测到显着的变化（P＆amp; 0.001）。再加上具有高广义的遗传性（所有特征的平均值：H-Plot（2）= 0.62和H-条目（2）= 0.88），结果表明在测试的环境中在该系列中有效选择的潜力。虽然显着，但没有发现极端变异，表明可能需要诱变或额外的种质来进行预期的改变。位置的效果对于十二个特征的九个具有重要意义，并且在十二个中的八个中的位置相互作用，表明依次的总体和相对性能跨位置是可变的。

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