白花甘蓝怎么吃 甘蓝型黄子白花油菜恢复系RW16的选育与应用
摘要:以显性白花油菜W62为母本与显性黄子油菜H440杂交、回交,经多代连续定向选择育成了甘蓝型油菜(Brassica napus L.)双低恢复系RW16,具有黄子和白花的特性。该恢复系具有较好的抗性和良好的品质性状,其芥酸含量平均为0.84%,硫甙含量平均为26.71 μmol/g,含油量平均为46.78%,符合国家优质标准,属于高含油量油菜品种。该恢复系产量一般配合力良好,配制的杂种F1代子粒暗黄色,植株花色乳白,含油量和产油量杂种优势明显,普遍高于对照秦优7号。
关键词:甘蓝型油菜(Brassica napus L.);黄子;白花;恢复系;选育
中图分类号:S565.4 文献标识码:A 文章编号:0439-8114(2012)15-3163-04
Breeding and Application of Rapeseed (Brassica napus L.) Restorer RW16 with Yellow Seed and White Petal
WANG Jun-sheng,FAN Xiao-fang,LI Cheng-wei,TAN Guang-xuan
(Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou 466000, Henan, China)
Abstract: RW16,a restorer of rapeseed (Brassica napus L.) with yellow-seed, white-petal and double-low quality (low erucic acid and low glucosinolate) was successfully developed by the successive and directional selections of multi-generations from a hybridization between F1(W62/H440) as female and H440 with yellow seed as male. RW16 had good cold-resistance, disease-resistance and quality characters. The average erucic acid content in oil, glucosinolate content in meal and oil content was 0.84%, 26.71 μmol/g and 46.78%, respectively. Based on the national standard, it belonged to a double-low restorer with high oil content. It also had better general combining ability in yield, the F1 hybrids from combinations of RW16 with other varieties showed better heterosis in oil yields per unit area and oil content, black-yellow seed coat and milky white petal, while the oil content of them was remarkably higher than that of Qinyou 7.
Key words: Brassica nupus L.; yellow seed; white petal; restorer; breeding
甘蓝型油菜(Brassica napus L.)花色突变体如白色、乳白色、金黄色和橘黄花油菜与普通黄花油菜易于识别,可稳定遗传,可以作为鉴别真假种子的标记性状[1,2],因此引起了广大育种者的重视。王翊等[2]育成了白花油菜恢复系并应用于油菜杂种选育以提高杂交种纯度,于澄宇等[3]从C022中发现黄白相间花色的甘蓝型油菜突变体不育株,并选育出花色稳定遗传的隐性核不育系991S,文雁城等[1]育成了白花甘蓝型胞质不育系,并用于育种实践。甘蓝型黄子油菜相比黑褐子具有以下优点,如种皮薄、含油量高、毛油无色素、杂质少、金黄色清澈透明;既保持了菜油的香味和沸点高的特点,又减少了油烟和加工成本[4]。黄子油菜的饼粕蛋白质含量高,氨基酸组成更合理,纤维素和多酚含量低,饲料利用价值高,是生产植物蛋白质的优质原料[5,6],因而黄子油菜育种已经成为油菜育种的主攻方向之一。目前,中国在黄子油菜育种方面已经取得了显著成效,如陕西省杂交油菜研究中心选育的黄杂1号含油量为42.00%~45.00%,选育的秦荣2号黄子杂交种含油量为46.52%,西南农业大学选育的甘蓝型黄子杂交油菜新品种渝黄1号含油量达43.18%[7],江苏省农业科学院育成的中国第一个甘蓝型油菜低芥酸黄子新品种宁油10号含油量为43.48%[8],贵州省油料研究所选育的油研9号黄子杂交种含油量高达43.75%~51.08%,育成的鼎油17含油量为44.05%[9],黔黄油21含油量高达47.50%[10],上海市农业科学院选育的申黄1号杂交种含油量平均为45.60%[11],这些品种均在中国油菜生产上发挥着重要作用。然而,把白花性状和黄子性状聚合于同一品种,选育白花黄子杂交油菜尚未见报道。因此,该研究主要报道选育显性黄子和白花油菜恢复系的过程、特性及其选配杂种的优势,旨在为其杂种优势利用提供理论依据。
1 材料与方法
1.1 试验材料
黄子亲本H440是对垦C1黄进行连续多代系统选育获得的低芥酸、低硫甙、高含油量黄子自交系;白花亲本W62来自于品种间杂交后代,遗传性稳定,花瓣纯白色,品质为低芥酸、低硫甙,含油量中等;不育系3A、4A、5A等是具有陕2A不育细胞质的雄性不育系;自交系中双6号、中双9号、HSTC10,骨干亲本09H456、09H746、09H1044、09B122、09Q1、09Q17和09Q22,均为双低自交系。秦优7号为黄淮区对照品种。
