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首页> 外文期刊>African Journal of Biotechnology >Performance of parental genotypes and inheritance of Angular Leaf Spot (Phaeosariopsis griseola) resistance in the common bean (Phaseolus vulgaris)
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Performance of parental genotypes and inheritance of Angular Leaf Spot (Phaeosariopsis griseola) resistance in the common bean (Phaseolus vulgaris)

机译：普通豆（菜豆）亲本基因型的表现和角叶斑病（Phaeosariopsis griseola）抗性的遗传

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摘要

Two studies, one on performance of six common bean parental genotypes and another on inheritance of resistance to?Phaeosariopsis griseola (Pg)?in the common bean were carried out in Malawi. Common bean entries namely; Chimbamba, Nasaka, RC 15, CAL 143 and Mexico 54 were evaluated on station in the 2004/2005 growing season at Bunda, Dedza, Ng'onga and Ntchenachena sites. The second study started by generating F1s and then F2?and F3?seeds in greenhouse at Bunda College. CAL 143 and Mexico 54 were sources of?Pg?resistance genes while Chimbamba, Nasaka and RC 15 were susceptible recipient parents. Following green house trials,?Pg?resistance was evaluated on station in the same sites. CAL 143 was highest yielding but unstable across sites. RC 15 was stable and gave the highest yield at the dry-spell-stricken Ng’onga whereas Mexico 54 was superior at Ntchenachena but highly unstable across sites. Yield was strongly correlated to number of effective pods per plant in all genotypes. The inheritance study showed that resistance to?Pg?in the common bean is controlled by one gene using both CAL 143 and Mexico 54 as resistant parents.
机译：在马拉维进行了两项研究，一项是关于六种普通豆亲本基因型的表现，另一项是关于普通豆中对拟南芥（Pgeosariopsis griseola（Pg））的抗性遗传的研究。普通bean条目即;在2004/2005年生长季节，在邦达，德扎，恩贡加和恩琴纳切纳等地对钦班巴，纳萨卡，RC 15，CAL 143和墨西哥54进行了站内评估。第二项研究从在邦达学院的温室中产生F1种子，然后生成F2和F3种子开始。 CAL 143和墨西哥54是“ Pg”抗性基因的来源，而Chimbamba，Nasaka和RC 15是易感受体父母。经过温室试验后，在同一地点的车站对Pg电阻进行了评估。 CAL 143的产量最高，但各地间不稳定。 RC 15是稳定的，在遭受干旱的Ngonga上收成最高，而Mexico 54在Ntchenachena上更胜一筹，但在各个站点之间都非常不稳定。在所有基因型中，产量与每株植物有效荚的数量密切相关。遗传研究表明，对普通豆中Pg2的抗性由一个基因控制，使用CAL 143和Mexico 54作为抗性亲本。

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