玉米和相关草的花枝系统的架构
Erik Vollbrecht1, Patricia S Springer, Lindee Goh
1Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.
Nature
|July 26, 2005
概括
玉米花朵结构是由ramosa1基因控制的,它决定了短枝的发展. 这个基因,这个基因.
科学领域:
- 植物生物学 植物生物学
- 遗传学 是一个遗传学.
- 进化生物学是进化的生物学.
背景情况:
- 植物架构在很大程度上取决于花朵结构和射击角的美里系统.
- 玉米的花朵,不同于大米或的花朵,通常没有长枝.
研究的目的:
- 为了隔离和描述控制花朵结构的玉米ramosa1基因.
- 了解玉米独特的花朵形式的遗传基础.
主要方法:
- 基因隔离和表达分析.
- 草种之间的比较基因组学. 草种之间的比较基因组学.
主要成果:
- 玉米ramosa1基因被分离出来,并被证明可以控制花朵结构.
- 边界域中的ramosa1表达式强加了短分支的身份.
- 拉莫萨2基因调节拉莫萨1的表达.
结论:
- 拉莫萨1在确定玉米花朵的花朵形式方面发挥着至关重要的作用.
- 拉莫萨1的进化可能影响了玉米的化和草的进化.
更多相关视频
06:21Micron-scale Phenotyping Techniques of Maize Vascular Bundles Based on X-ray Microcomputed Tomography
Published on: October 9, 2018
06:11Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
Published on: September 22, 2023
相关概念视频
Introduction to Seed Plants
Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.
Basic Plant Anatomy: Roots, Stems, and Leaves
The primary organs of vascular plants are roots, stems, and leaves, but these structures can be highly variable, adapted for the specific needs and environment of different plant species.
Morphogenesis
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Light Acquisition
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
Pollination and Flower Structure
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
Plant Tissues
Plants are multicellular eukaryotes with tissue systems made of various cell types that carry out specific functions. Different tissues work together to perform a unique function and form an organ. Organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. The shoot system consists of two portions: the vegetative (non-reproductive) parts of the plant, such as the leaves and the stems, and the reproductive parts of the plant,...
