李亚科果树自交不亲和性机制的研究进展
Advances in research of mechanism of self-incompatibility in fruit trees of subfamily Prunoideae
刘亚婷 1刘春生 1叶茂 1张曼 1王海静 1武军凯1
作者信息
- 1. 河北科技师范学院园艺科技学院,河北省特色园艺种质挖掘与创新利用重点实验室,河北秦皇岛 066000
- 折叠
摘要
蔷薇科果树大多具有自交不亲和的特性,它是一种通过雌蕊和花粉的特异性识别防止近亲繁殖的调控机制.自交不亲和有利于维持果树种群的遗传多样性,是果树群体遗传和进化研究中的重要性状.李亚科果树是蔷薇科果树的一个重要分支,包含桃(Prunus persica)、李(P.salicina)、杏(P.armeniaca)、扁桃(P.dulcis)、果梅(P.mume)和中国樱桃(P.pseudocerasus)等树种.李亚科果树在分类上属于S-RNase介导的配子体自交不亲和,S位点至少包括花柱侧特异表达的S-RNase和花粉侧特异表达的F-box基因.本文综述了李亚科果树S决定因子的发现、花粉及花柱的分子识别机制以及自交亲和性突变体的研究进展,以期能够阐明李亚科果树授粉的分子机制,为李亚科果树分子育种提供理论基础.
Abstract
Most fruit trees in the Rosaceae family are characterized by self-incompatibility,a regulatory mechanism that prevents inbreeding through specific recognition of pistils and pollen.Self-incompatibility helps to maintain genetic diversity in fruit tree populations and is an important trait in studying the genet-ics and evolution of fruit tree populations.The fruit trees of Prunoideae are an important branch of the fruit trees of the family Rosaceae,containing species such as peach(Prunus persica),plum(P.salicina),apricot(P.armeniaca),lentil(P.dulcis),fruit plum(P.mume)and Chinese cherry(P.pseudocerasus).Fruit trees of Plumiaceae are taxonomically classified as S-RNase-mediated gametophytic self-incompatibility,with the S locus comprising at least the S-RNase specifically expressed on the style side and the F-box gene de-scribed explicitly on the pollen side.This paper reviewed the discovery of S-determinants,the molecular recognition mechanism of pollen and style,and the progress of self-compatible mutants in Plumiaceae,with a view to elucidating the molecular mechanism of pollination in prunus and providing a theoretical ba-sis for the molecular breeding of Plumiaceae.
关键词
李亚科/配子体自交不亲和/S-RNase/SFB/非S因子Key words
Plumiaceae/gametophytic self-incompatibility/S-RNase/SFB/Non-S factor引用本文复制引用
基金项目
河北省自然科学基金(C2021407044)
出版年
2024
NETL
NSTL
万方数据