Hongwen Huang, Ying Wang, Zhonghui Zhang, Zhengwang Jiang, and Shengmei Wang
Hongwen Huang, Shengmei Wang, Renhuang Huang, Zhengwang Jiang, and Zhonghui Zhang
'Jintao' is a new yellow-fleshed kiwifruit (Actinidia chinensis Planch) developed from the breeding program at the Wuhan Institute of Botany (WIB), in Wuhan, Hubei, People's Republic of China. 'Jintao' is a midseason cultivar that ripens three to four weeks before the standard commercial cultivar [A. deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson] 'Hayward'. It is sweeter than 'Hayward' and has a smooth skin. 'Jintao' was selected from A. chinensis and offers growers in warmer climates an alternative to 'Hayward', because of its higher productivity, better fruit quality, and improved heat tolerance. 'Jintao', which means golden peach in Chinese, is named in recognition of its yellow flesh and the common Chinese name, Mihou-tao, or monkey peach.
Zhengwang Jiang, Shengmei Wang, Renhuang Huang, Zhonghui Zhang, and Hongwen Huang
Caihong Zhong, Shengmei Wang, Zhengwang Jiang, and Hongwen Huang
Hongwen Huang, Fenny Dane, Zhongzen Wang, Zhengwan Jiang, Rehuang Huang, and Shengmei Wang
Isozyme inheritance and variation in Actinidia was investigated using 23 enzyme systems. Ten isozyme loci from six enzyme systems, Acp-2, Est, Prx-1, Prx-2, Prx-4, Prx-5, Pgi-2, Pgm-2, and Tpi, were found to be inherited as single Mendelian genes in families of two interspecific crosses. Disomic inheritance detected at ten loci in progenies of a cross between the hexaploid A. deliciosa × diploid A. chinensis, provided convincing evidence that A. deliciosa is an allohexaploid. Allelic segregation for tetrasomic inheritance at ten isozyme loci was demonstrated in the progenies of a cross between the tetraploid A. chinesis × diploid A. eriantha, a result suggesting the autotetraploid origin of the tetraploid A. chinensis which apparently originated from its diploid ancestor A. chinensis. A high level of isozyme variation and heterozygosity were observed in the 22 cultivars and 56 plants of 28 Actinidia taxa. Allozyme phenotype can be used effectively for cultivar identification.