Identification of pepper (Capsicum annuum L.) accessions with large or small fruit that have a high degree of parthenocarpy
Identification of pepper (Capsicum annuum L.) accessions with large or small fruit that have a high degree of parthenocarpy
复制标题
DOI：
10.1016/j.scienta.2011.12.014
复制
发表时间：
2012-02-24
影响因子：
4.3
通讯作者：
Fukuda, Machiko
中科院分区：
文献类型：
--
作者：
Honda, Ichiro;Matsunaga, Hiroshi;Fukuda, Machiko
在辣椒(辣椒L)中，单性结实的材料尚未用于实际育种。为了获得单性结实程度高的材料，我们比较了未授粉和授粉条件下的相对座果率(衡量辣椒单性结实能力的一个标准)。在对从世界各地收集到的173份材料进行了调查后，我们挑选了一些有希望的候选人进行更仔细的审查。‘CNPH2622’授粉前后座果率变化不大，表现为单性结实能力强。正如之前报道的那样，能结小果的新品种‘Shishitoh’是一个高度单性结实的品种。‘CNPH2622’和‘石狮多’的单性结实果实生长良好，但比授粉结实的果实小，说明这两个品种座果力较高，但果实膨大率较低，我们还发现了两个独特的材料‘INT/RSSIOS/2001/1579’和‘INT/SORASS/2001/280’。这些材料将是研究辣椒果实膨大的良好工具。‘CNPH2622’、‘Shishitoh’和‘int/Russia/2001/1579’的花药去掉和花柱去掉后，果实性状无明显差异。(C)2011爱思唯尔B.V.保留所有权利。
In pepper (Capsicum annuum L), parthenocarpic accessions have not been available for use in practical breeding. To obtain accessions with a high degree of parthenocarpy, we compared the relative rates of fruit set between unpollinated and pollinated conditions (a criterion for a pepper's parthenocarpic ability). After surveying 173 accessions collected from around the world, we selected some promising candidates for closer examination. The fruit set rate of 'CNPH2622' did not change with or without pollination, indicating high parthenocarpic fruit set ability. 'Shishitoh', an accession that produces small fruit, was a highly parthenocarpic variety, as was previously reported. Parthenocarpic fruit of 'CNPH2622' and 'Shishitoh grew well, but were smaller than those produced by pollination, indicating that these cultivars had high fruit set abilities, but inadequate fruit enlargement. We also found two unique accessions, 'INT/RUSSIA/2001/1579', which produced many unpollinated fruit that never enlarged, and 'INT/RUSSIA/2001/280', which never set fruit without pollination. These accessions will be good tools for studying fruit enlargement in pepper. Fruiting properties of 'CNPH2622', 'Shishitoh', and 'INT/RUSSIA/2001/1579' did not differ after removal of either their anthers or their style. (C) 2011 Elsevier B.V. All rights reserved.