Translated Titles

Advances in Researches on Genetic Markers of 2n Gametes


张正海(Zheng-Hai Zhang);康向阳(Xiang-Yang Kang)

Key Words

植物 ; 2n配子 ; 遗传标记 ; 多倍体育种 ; plants ; 2n gametes ; genetic markers ; polyploid breeding



Volume or Term/Year and Month of Publication

28卷1期(2006 / 01 / 01)

Page #

105 - 109

Content Language


Chinese Abstract


English Abstract

2n gametes are the result of meiotic mutation during micro-and mega-sporogenesis that bear the sporophytic rather than the gametophytic chromosome number. This paper reviewed the genetic markers including the morphologic, cytological, isozymes and DNA markers, which have been employed in the generation, inheritance, heterozygosity and marker-assisted breeding of 2n gametes based on the frequency of large pollen grains, cytological analyses, unexpected occurrence of polyploidy progeny and the associations between parents and progenies. Future perspectires include strategies for a better understanding of the genetic control and meiotic mutations responsible for 2n gametes formation, this could open up new prospects in the use of 2n gametes for plant breeding. It should be possible to use marker-assisted selection of superior 2n gametes for polyloid breeding.

Topic Category 醫藥衛生 > 醫藥總論
醫藥衛生 > 基礎醫學
生物農學 > 生物科學