MANGROVE GENETICS .3. PIGMENT FINGERPRINTS OF CHLOROPHYLL-DEFICIENT MUTANTS

被引:11
|
作者
CORREDOR, JE
MORELL, JM
KLEKOWSKI, EJ
LOWENFELD, R
机构
[1] UNIV MASSACHUSETTS,DEPT BIOL,AMHERST,MA 01003
[2] UNIV PUERTO RICO,DEPT MARINE SCI,MAYAGUEZ,PR 00681
关键词
D O I
10.1086/297229
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The homozygous albino offspring from ii different red mangrove trees (Rhizophora mangle) heterozygous for albinism were pigment fingerprinted by HPLC/diode-array spectroscopy. The majority of albino genotypes were deficient in suites of chlorophylls, xanthophylls, and carotenes. A total of five different chemical phenotypes was distinguished. In red mangroves, genetic load due to homozygosity for chlorophyll deficiency follows Muller's mutation load model; i.e., small load contributions are made by many different loci. The average load contribution is 1.3 x 10(-4) homozygous albino offspring per locus.
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页码:55 / 60
页数:6
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