CHROMOSOMAL STRUCTURAL-CHANGES IN CAPSICUM-ANNUUM-L AND C-CHINENSE JACQ
CHROMOSOMAL STRUCTURAL-CHANGES IN CAPSICUM-ANNUUM-L AND C-CHINENSE JACQ
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DOI：
10.1007/bf00022739
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发表时间：
1993-01-01
期刊：
影响因子：
1.9
通讯作者：
PICKERSGILL, B
中科院分区：
文献类型：
--
作者：
LANTERI, S;PICKERSGILL, B
对辣椒与其近缘种辣椒杂交F1代的减数分裂进行了研究。chinense。父母加入不同的两个染色体互换。春夏季花粉母细胞中有18%的细胞为六价体，而秋季花粉母细胞中没有发现多价体，交叉也较少。互换杂合性是辣椒属种间杂种的特征，常导致6条或更多染色体的倍数。
Meiosis was studied in an F1 hybrid between domesticated Capsicum annuum and its close relative C. chinense. The parental accessions differed by two chromosomal interchanges. A hexavalent was present in 18% of pollen mother cells collected in spring and summer but no multivalents were found in pollen mother cells collected in autumn and chiasmata were also less frequent then. Interchange heterozygosity, often resulting in multiples of six or more chromosomes, is characteristic of interspecific hybrids in Capsicum.