Genetic control of isozymes in Carica papaya L.

被引：0
作者：
Maimunah Morshidi
机构：
[1] University Malaysia Sarawak,Faculty of Resource Sciences and Technology
来源：
Euphytica | 1998年 / 103卷
关键词：
Carica papaya; electrophoresis; genetic control; genetic variation; isozymes; papaya;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The genetic control of isozymes was investigated in papaya. Out of six buffer systems tested, Histidine-citrate pH 6.5 gave the most consistent and greatest number of well-resolved enzymes. Nine enzyme systems (ACO, IDH, MDH, PGM, PGI, SKD, TPI, UGP, 6-PGD) out of 28 were resolved. Based on the initial screening of 131 accessions of papaya from Central and South America for electromorph variants, parents were selected for various combinations of controlled crosses. These controlled crosses were then used to elucidate the inheritance of isozymes in papaya. Evidence of Mendelian inheritance was obtained for eight out of nine polymorphic loci: Aco-1, Aco-2, Pgi-2, Pgm-1, Skd, Tpi-1, Tpi-2, and Ugp. No controlled cross was available to study the genetic control of the polymorphic locus Pgm-2. Because they were not variable in all accessions included in this study, the loci Idh, Mdh-1, Mdh-2, and 6-Pgd, were also not examined by segregation analysis.
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页码：89 / 94
页数：5
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