花生是世界上主要的粮食和油料作物之一。作为营养和植物油的来源,富含经济实惠和易消化的蛋白质,它是布基纳法索粮食安全的战略作物,营养,和现金收入。了解影响产量和产量构成性状的基因效应和遗传变异的性质将有助于设计适当的育种方法以改良花生并提高布基纳法索的选择效率。
■在2018年,使用六个不同和对比的品种,通过6x6全Diallel交配产生了总共30个F2后代。2019年,在ICRISAT-Mali实验场进行了3次重复的格子正方形设计中评估了父母和后代,以评估一般结合能力(GCA)和特定结合能力(SCA)的影响,产量构成性状(YCT)和含油量(OC)的遗传以及母体和相互影响。
■在DTH的亲本基因型及其F2后代中观察到显着的变异性,PSR,HPW,PL,PWD,SL,SWD,和OAC。六位父母的平均表现为HPW(117.05g),HSW(57.24g),PYH(1914.76),SYH(1312.73),PL(2.52),PWD(1,19),SL(1.38),SWD(0.83),OC(49.43),OAC(50.43)和LAC(33.61)。亲本QH243C呈现SWD(1.02cm)和OAC(60.76)的最高值,而亲本ICGV09195具有OC的最高值(50.36)。Chalimbana提出了最高的HPW值(169.61克),PL(2.98cm),PWD(1。41厘米),和SL(1.57厘米),而CG7代表HSW的最高值(75。14g),和SYH(1639.28公斤)。YCT和OC均受加性和非加性基因效应控制,以HSW的加性基因作用为主,SL,和SWD,而HPW,PL,PWD,发现OAC更受非加性基因效应控制。YCT和OC均观察到母体效应以及核和细胞质相互作用效应,表明YCT和OC受母体和核基因组遗传因素组合的影响。以及线粒体DNA等细胞质因子。广义遗传力从3.76%到91.56%,豆荚长度的广义遗传力值较高(91.56%),百荚重量(83.71%)和荚宽度(80.95%)。
■这项研究为YCT和OC的遗传提供了有价值的见解。父母,当用作雄性亲本时,Chalimbana和CG7在产量组成性状和油含量方面都表现出良好的组合,而TE3,Sh470P和QH243C可用作雌性油含量及其成分(油酸和亚油酸含量)。
UNASSIGNED: Groundnut is one of the world\'s major food and oil crops. Being sources of nutrition and vegetable oil, rich in affordable and digestible protein, it is a strategic crop in Burkina Faso for food security, nutrition, and cash income. Understanding the nature of gene effect and genetic variation affecting yield and yield component traits will contribute to designing appropriate breeding methods for groundnut improvement and increase selection efficiency in Burkina Faso.
UNASSIGNED: In 2018, a total of 30 F2 progenies were generated through a 6 x 6 full diallel mating using six different and contrasting varieties. In 2019, parents and progenies were evaluated in a lattice square design in 3 replications at ICRISAT-Mali experimental field to assess the general combining ability (GCA) and specific combining ability (SCA) effects, the inheritance and the maternal and reciprocal effects for yield component traits (YCT) and oil content (OC).
UNASSIGNED: Significant variabilities were observed among the parental genotypes and their F2 progenies for DTH, PSR, HPW, PL, PWD, SL, SWD, and OAC. Mean performance of the six parents were HPW (117.05g), HSW (57.24 g), PYH (1914.76), SYH (1312.73), PL (2.52), PWD (1,19), SL (1.38), SWD (0.83), OC (49.43), OAC (50.43) and LAC (33.61). Parent QH243C presented the highest value for SWD (1.02 cm) and OAC (60.76) while the parent ICGV09195 had the highest value of OC (50.36). Chalimbana presented the highest value of HPW (169.61 g), PL (2.98 cm), PWD (1. 41 cm), and SL (1.57 cm) while CG7 presented the highest value for HSW (75. 14 g), and SYH (1639.28 kg). Both YCT and OC are controlled by additive and non-additive gene effects with a predominance of additive gene action for HSW, SL, and SWD, whereas HPW, PL, PWD, and OAC were found to be more controlled by non-additive gene effects. Maternal effects as well as nuclear and cytoplasmic interaction effects were observed for both YCT and OC indicating that YCT and OC are influenced by a combination of genetic factors from both the maternal parent and the nuclear genome, as well as cytoplasmic factors such as mitochondrial DNA. Broad sense heritability ranged from 3.76 % to 91.56 %, and higher broad sense heritability values were recorded for pod length (91.56 %), hundred pod weight (83.71 %) and pod width (80.95 %).
UNASSIGNED: The study yields valuable insights into the inheritance of YCT and OC. The parents, Chalimbana and CG7, showed promise as good combiners for both yield component traits and oil content when used as male parents while TE3, Sh470P and QH243C can be used as female for the oil content and its components (oleic and linoleic content).