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Duplication of the Brassica oleracea APETALA1 floral homeotic gene and the evolution of domesticated cauliflower.甘蓝型油菜APETALA1花同源异型基因的复制与驯化花椰菜的进化
J Hered. 1999 Sep-Oct;90(5):514-20. doi: 10.1093/jhered/90.5.514.
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Evidence on the origin of cassava: phylogeography of Manihot esculenta.木薯起源的证据：木薯的系统地理学
Proc Natl Acad Sci U S A. 1999 May 11;96(10):5586-91. doi: 10.1073/pnas.96.10.5586.
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The limits of selection during maize domestication.玉米驯化过程中的选择限制。
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Molecular population genetics of floral homeotic loci. Departures from the equilibrium-neutral model at the APETALA3 and PISTILLATA genes of Arabidopsis thaliana.花同源异型基因座的分子群体遗传学。拟南芥APETALA3和PISTILLATA基因偏离平衡中性模型的情况。
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Speciation and domestication in maize and its wild relatives: evidence from the globulin-1 gene.玉米及其野生近缘种的物种形成与驯化：来自球蛋白-1基因的证据。
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The association of flowering time quantitative trait loci with duplicated regions and candidate loci in Brassica oleracea.甘蓝花期数量性状基因座与重复区域及候选基因座的关联
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8
Molecular population genetics of the Arabidopsis CAULIFLOWER regulatory gene: nonneutral evolution and naturally occurring variation in floral homeotic function.拟南芥CAULIFLOWER调控基因的分子群体遗传学：非中性进化与花同源异型功能的自然变异
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在驯化甘蓝进化过程中，花椰菜花同源异型基因的变异与选择

Variation and selection at the CAULIFLOWER floral homeotic gene accompanying the evolution of domesticated Brassica oleracea.

作者信息

Purugganan M D, Boyles A L, Suddith J I

机构信息

Department of Genetics, North Carolina State University, Raleigh 27695, USA.

出版信息

Genetics. 2000 Jun;155(2):855-62. doi: 10.1093/genetics/155.2.855.

DOI:10.1093/genetics/155.2.855
PMID:10835404
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1461124/
Abstract

The evolution of plant morphologies during domestication events provides clues to the origin of crop species and the evolutionary genetics of structural diversification. The CAULIFLOWER gene, a floral regulatory locus, has been implicated in the cauliflower phenotype in both Arabidopsis thaliana and Brassica oleracea. Molecular population genetic analysis indicates that alleles carrying a nonsense mutation in exon 5 of the B. oleracea CAULIFLOWER (BoCAL) gene are segregating in both wild and domesticated B. oleracea subspecies. Alleles carrying this nonsense mutation are nearly fixed in B. oleracea ssp. botrytis (domestic cauliflower) and B. oleracea ssp. italica (broccoli), both of which show evolutionary modifications of inflorescence structures. Tests for selection indicate that the pattern of variation at this locus is consistent with positive selection at BoCAL in these two subspecies. This nonsense polymorphism, however, is also present in both B. oleracea ssp. acephala (kale) and B. oleracea ssp. oleracea (wild cabbage). These results indicate that specific alleles of BoCAL were selected by early farmers during the domestication of modified inflorescence structures in B. oleracea.

摘要

驯化过程中植物形态的演变提供了有关作物物种起源和结构多样化进化遗传学的线索。花椰菜基因（CAULIFLOWER gene）是一个花调控位点，已被证明与拟南芥和甘蓝的花椰菜表型有关。分子群体遗传学分析表明，甘蓝（Brassica oleracea）花椰菜基因（BoCAL）第5外显子携带无义突变的等位基因在野生和驯化的甘蓝亚种中均有分离。携带这种无义突变的等位基因在甘蓝变种（B. oleracea ssp. botrytis，即栽培花椰菜）和甘蓝变种（B. oleracea ssp. italica，即西兰花）中几乎固定，这两个变种都表现出花序结构的进化修饰。选择测试表明，该位点的变异模式与这两个亚种中BoCAL的正选择一致。然而，这种无义多态性在羽衣甘蓝（B. oleracea ssp. acephala）和野甘蓝（B. oleracea ssp. oleracea）中也存在。这些结果表明，BoCAL的特定等位基因在甘蓝驯化过程中被早期农民选择，用于改良花序结构。