RESTRICTION-FRAGMENT-LENGTH-POLYMORPHISM EVALUATION OF 6 PEANUT SPECIES WITHIN THE ARACHIS SECTION

被引：70

作者：

PAIKRO, OG ^{[1
]}

SMITH, RL ^{[1
]}

KNAUFT, DA ^{[1
]}

机构：

[1] UNIV FLORIDA,DEPT AGRON,GAINESVILLE,FL 32611

来源：

THEORETICAL AND APPLIED GENETICS | 1992年 / 84卷 / 1-2期

关键词：

RESTRICTION FRAGMENT LENGTH POLYMORPHISM; TETRAPLOID CULTIVATED PEANUT; ARACHIS SPECIES; GENETIC DIVERSITY; GENETIC DISTANCE;

D O I：

10.1007/BF00224001

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Restriction fragment length polymorphisms (RFLP) were assessed among accessions within six peanut species of the Arachis section: tetraploid cultivated species, A. hypogaea; tetraploid wild species, A. monticola; and four diploid wild species, A. batizocoi, A. cardenasii, A. duranensis and A. glandulifera. While the two tetraploid species did not show polymorphism with 16 PstI-generated random genomic probes, two of seven seed cDNA probes detected polymorphisms. The RFLP variation detected by two seed cDNA probes appeared to be related to structural changes occurring within tetraploid species. The botanical var. 'fastigiata' (valencia market type) of A. hypogaea subspecies fastigiata was shown to be the most variable. Arachis monticola was found to be more closely related to A. hypogaea subspecies hypogaea than to subspecies fastigiata. Diploid species A. cardenasii, A. duranensis, and A. glandulifera showed considerable intraspecific genetic diversity, but A. batizocoi showed little polymorphism. The genetic distance between the cultivated peanut and wild diploid species was found to be closest for A. duranensis.

引用

页码：201 / 208

页数：8

共 27 条

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