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Bulletin of Botanical Research ›› 1990, Vol. 10 ›› Issue (1): 99-103.

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OBSERVATIONS ON THE MORPHOLOGY AND MEIOSIS OF INTERSPECIES HYBRID TRIPLOID IN ACTINIDIA

Xiong Zhi-ting   

  1. Wuhan Institute of Botany, Academia Sinica, Wuhan Hubei
  • Online:1990-03-15 Published:2016-06-14

Abstract: Observations are reported in present paper on the morphological features and meiosis of the first filial generation (F1) of Actinidia chinese var. chinese (2n=4x=116)×A. eriantha (2n=2x=58). The hybrid plants are similar to its paternal species in some characters (e. g. flower color) or in some other characters to the materral species (e. g. anther number), while the comprehensive morphological features of the F1 plants are largely the middle in the interval between the two parent species features. Somatic chromosome number of the hybrid is 2n=3x=87, with two sets coming from A. chinese var. chinese, the other set from A. eriantha. Chromosome configuration at MI of PMC meiosis is 29Ⅱ+29Ⅰ, a typical configuration for a allotriploid. Both male and female plants are highly sterile, therefore the hybrid will be horticulturally unvalued unless some methods of promoting fruit development are available.