TRICHOMES IN SEGREGATING GENERATIONS OF SORGHUM MATINGS .1. INHERITANCE OF PRESENCE AND DENSITY
TRICHOMES IN SEGREGATING GENERATIONS OF SORGHUM MATINGS .1. INHERITANCE OF PRESENCE AND DENSITY
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DOI：
10.2135/cropsci1983.0011183x002300010020x
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发表时间：
1983-01-01
期刊：
影响因子：
2.3
通讯作者：
MAITI, RK
中科院分区：
文献类型：
--
作者：
GIBSON, PT;MAITI, RK
高粱叶片上毛状体的存在[S. bicolor（L.）Moench]与降低对叶蜂（Atherigona soccata Rond.）攻击在5个单交后代中，有毛和无毛亲本间的分离比表明，叶片毛的存在是隐性的，由一个位点控制。4个有毛亲本的3个杂交组合的毛性状遗传涉及同一位点。tr是控制毛状体存在的基因。单交交配产生的毛状体品系间，叶背叶片上的毛状体密度各不相同。F4对F3的标准单位遗传力，仅在杂交IS 1054 × 1054中估计。B CK 60为0.75。
The presence of trichomes on the leaves of sorghum [S. bicolor (L.) Moench] is associated with reduced susceptibility to shootfly (Atherigona soccata Rond.) attack. Segregation ratios in successive generations of 5 single-cross matings between trichomed and trichomeless parents indicated that the presence of leaf-blade trichomes is recessive and controlled by a single locus. Inheritance of the trichome trait in 3 matings among 4 trichomed parents involved the same locus. The symbol tr is proposed for the gene controlling trichome presence. Trichome density on the abaxial leaf lamina varied among trichomed lines derived from single-cross matings. Standard unit heritability for F4 on F3, estimated only in the cross IS 1054 .times. B CK60, was 0.75 on a plot basis.