Transmission and Quality Effect Involving 1V Chromosome of Haynaldia vollisa

doi:10.7668/hbnxb.2011.05.025

Abstract

Abstract: Haynaldia villosa is a wild relative of common wheat.Higher seed protein concentration and SDS-sedimentation value were found in addition or substitution lines of 1V in Chinese Spring background than those in Chinese Spring.It is an efficient method for wheat quality improvement to introduce high quality genes from 1V into common wheat and to develop T.aestivum-H.villosa translocation line involving 1V chromosome.Transmission behave of 1V chromosome and its structure aberrants through gametes were analyzed in this paper based 1V alien chromosome lines,which backcrossed continuously with T.aestivum and identified with fluorescence in situ hybridization and PCR markers.The result indicated that the transmission percentage of 1V chromosome and its structure aberrants were lower than the theory values in BC1,BC2,BC3 generations,and the transmission ratios enhanced when the backcross generation increased.The transmission percentage of two type translocation chromosomes through female and male gamete were accorded with separate law of 1 ∶ 1,and of telosomic lines and 1V chromosome were lower than 50% in BC3.Various type 1V chromosomes through female gamete showed relatively stable transmission ability in difference generations with an order of W 1VL1VS W1VMt1VLMt1VS,and transmission ability through female gametes was generally higher than that through male gametes.1V alien chromosome lines possess higher protein and wet gluten content than Chinese Spring and T.durum according quality test,and it would be excellent resource for quality improvement in common wheat.

Key words: Wheat, Haynaldia villosa, 1V alien chromosome line, Transmission percentage through gametes, Quality effect

CLC Number:

S512.1

CAO Ya-ping, ZHANG Ming-yi, FAN Shao-qiang, ZHANG Feng-qin, ZHOU Yuan-cheng, ZHANG Shu-min. Transmission and Quality Effect Involving 1V Chromosome of Haynaldia vollisa[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(5): 122-126. doi: 10.7668/hbnxb.2011.05.025.

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