Department of Horticulture and Plant Genetic Engineering Laboratory, New Mexico State University, Las Cruces, NM 88003.
Proc Natl Acad Sci U S A. 1985 Aug;82(15):5093-6. doi: 10.1073/pnas.82.15.5093.
By using a number of previously mapped enzyme-coding genes as genetic markers, it has been possible to scan the genome of Lycopersicon peruvianum for gene(s) controlling the gametophytic self-incompatibility reaction. Regardless of genetic background or level of inbreeding, only a single locus (S), mapping to chromosome 1, was found to control the self-incompatibility reaction. Despite the widespread occurrence of this form of self-incompatibility in higher plants, to the best of our knowledge, the locus underlying the response has not been confirmed previously through genetic mapping, and the results cast doubts on hypotheses requiring multifactoral or dynamic control of gametophytic self-incompatibility.
利用大量已定位的酶编码基因作为遗传标记，人们已经可以在秘鲁番茄的基因组中扫描控制配子体自交不亲和反应的基因。无论遗传背景或近交程度如何，人们只发现了一个单一的基因座（S）位于 1 号染色体上，控制着自交不亲和反应。尽管这种形式的自交在高等植物中广泛存在，但据我们所知，以前还没有通过遗传图谱确认控制这种反应的基因座，这一结果对需要多因素或动态控制配子体自交不亲和的假说提出了质疑。
