相关实验视频

Updated: Jun 2, 2025

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis

Published on: June 19, 2014

在干旱环境中种植的石榴 (Punica granatum L.) 品种的染色体水平组合

Himanshu V Patankar¹, Luis F Rivera², Fatima Omari Alzahrani³

¹Plant Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), 23955-6900, Thuwal, Saudi Arabia. himanshu.patankar@kaust.edu.sa.

Scientific data

|January 15, 2025

概括

研究人员开发了石榴的高质量参考基因组,石榴是一种对干旱气候和粮食安全至关重要的水果. 这种基因组资源有助于识别抗压力和潜在的药物化合物.

科学领域:

植物基因组学植物基因组学
干旱的农业干旱的农业

背景情况:

石榴 (Punica granatum L.) 以其营养和抗氧化价值而闻名,原产于干旱的中东地区.
石榴对于干旱气候中的粮食安全至关重要,但基因组资源有限.
基因组数据对于理解和改善石榴的弹性和有益性质至关重要.

研究的目的:

为了生成高质量的,染色体水平的对石榴的参考基因组.
为石榴基因组学研究提供基础资源,特别是对于干旱环境.

主要方法:

使用PacBio HiFi长读取基因组测序.
组装了一个染色体水平的参考基因组,将序列在八个伪染色体上.

主要成果:

最终的石榴基因组组装是384.65 Mb,N50 连接大小为43.11 Mb.
鉴定了21,620个蛋白质编码基因和48.79%的重复元素.
353.42 Mb的基因组被成功定到八个伪染色体中.

结论:

新的参考基因组是石榴种植和研究的宝贵资源.
方便在干旱条件下识别抗压性特征.
支持用于制药应用的新型抗氧化剂和抗微生物的发现.

更多相关视频

Determination of Self- and Inter-incompatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses

Determination of Self- and Inter-incompatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses

Published on: June 16, 2020

Determination of Self-Incompatibility and Inter-Incompatibility Relationships in Citrus Using Manual Pollination, Microscopy, and S-Genotype Analyses

Determination of Self-Incompatibility and Inter-Incompatibility Relationships in Citrus Using Manual Pollination, Microscopy, and S-Genotype Analyses

Published on: June 30, 2023

相关概念视频

Polytene Chromosomes

Polytene Chromosomes

Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...

Fruit Development, Structure, and Function

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.

Karyotyping

Karyotyping

Lampbrush Chromosomes

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...