小冰麦异附加系列Ⅰ天兰冰草染色体上的酯酶同工酶基因定位

CHROMOSOMAL LOCATIONS OF WHEATGRASS ESTERASE ISOZYME GENES IN SET I WHEAT-WHEATGRASS ALIEN ADDITIONAL LINES

分析了小冰麦异附加系列Ⅰ及其亲本的叶片醋酶(ESTL)、胚乳酯酶(ESTE)和胚芽鞘酯酶(ESTC)的酶谱表型。把冰草酯酶同工酶基因Este-Ag^i1 和Estc-Ag^i1定位到异附加系 TAI-12、基因 Estl-Ag^i3和Este-Ag^i4分别定位到TAI-14和TAI-15中的冰草染色体上。根据这些基因定位,结合某些植株形态学特征,推测TAI-12、TAI-14和TAI-15中的冰草染色体分别与小麦第3、7和6同祖群有一定部分同源关系。

The leaf esterase(ESTL), endosperm esterase(ESTE) and coleoptile esterase(ESTC) zymo- gram phenotypes in Set 1 wheat-wheatgrass alien additional lines and their parents were ana- lysed. The wheatgrass genes Este-Ag^1l and Estc-Ag^1l were located onto the wheatgrass chromo- somes of line TAI-12, the gene Est1--Ag^13 onto TAI-14, and the gene Este-Ag^14 onto TAI-15. On the basis of some plant morphologies as well as those gene locations it might be deduced that TAI-12, TAI-14 and TAI-15 carry the wheatgrass chromosomes homoelogous to the wheat chromosomes of homoeologous groups 3, 7 and 6, respectively.