Tue Jun 03 00:00:00 UTC 2025: Okay, here’s a summary of the provided text, followed by a news article rewrite:
**Summary:**
A recent study by researchers at CSIR-CCMB in Hyderabad sheds light on the rapid diversification of flowering plants, a puzzle known as Darwin’s “abominable mystery.” The research focuses on a newly discovered gene called SHUKR in *Arabidopsis thaliana* (and found in other eudicots). SHUKR, expressed in sporophyte cells, controls the development of pollen (gametophytes) in flowering plants. Unlike mosses, where gametophyte development is independent, the study shows that flowering plant sporophytes exert control over their gametophytes. The SHUKR gene regulates F-box genes, which manage protein turnover in pollen. The rapid evolution of SHUKR and its controlled F-box genes may have enabled eudicots to adapt to diverse environmental conditions by varying pollen quality. This adaptation, along with other factors like root systems and flower-pollinator strategies, contributed to the evolutionary success of flowering plants. This research holds implications for improving plant resilience to climate change and ensuring food security by understanding the mechanisms that make plants thrive in harsh environments.
**News Article:**
**Indian Scientists Unravel Darwin’s “Abominable Mystery” of Flowering Plant Evolution**
**Hyderabad, India – June 3, 2025** – A team of researchers at the CSIR-Centre for Cellular and Molecular Biology (CCMB) in Hyderabad has made a significant breakthrough in understanding the rapid diversification of flowering plants, a long-standing evolutionary puzzle famously dubbed the “abominable mystery” by Charles Darwin. Their findings, published in *Nature Plants*, identify a key gene, named SHUKR, that plays a critical role in this process.
For over a century scientists have been baffled by the speed in which flowering plants first diversified around 130 million years ago.
The study reveals that the SHUKR gene, found in eudicots (a plant group that comprises 75% of all flowering plants), regulates the development of pollen, the male gametophyte responsible for fertilization. Unlike earlier land plants like mosses, where sperm cells always have enough water to swim through towards the egg cells, flowering plants operate in more variable conditions. The scientists suggest that this regulation allows plants to rapidly adapt to different environmental conditions through variations in pollen quality. In flowering plants, the sporophyte (the main plant body) controls the gametophyte (pollen) development, a departure from earlier plants where the gametophyte development is independent.
“The fast-evolving nature of SHUKR and the F-box genes it controls allowed the eudicot plants to explore, adapt to, and successfully reproduce in various environmental conditions through variations in pollen,” explains Imran Siddiqi, emeritus scientist and lead researcher.
The research has significant implications for addressing the challenges posed by climate change to global food security. By understanding the molecular mechanisms that enable plants to adapt to harsh environments, scientists can develop strategies to enhance plant resilience. The team speculates that preconditioning pollen for specific environments could naturally improve plants’ ability to withstand environmental stresses.
This discovery opens a new avenue for researchers seeking to enhance plant fitness in the face of increasingly challenging environmental conditions, potentially ensuring the continued abundance of vital food crops.
First Piper 