Advancing Horticulture: The Role of Marker-Assisted Breeding in Crop Improvement
Tejaswini R
Department of Horticulture, University of Agricultural Sciences, GKVK, Bengaluru, India.
Gangishetti Ranjithkumar *
Department of Genetics and Plant Breeding, Sri Krishnadevaraya College of Horticultural Sciences, Ananthapuramu, India.
Varsha H D
Department of Horticulture, University of Agricultural Sciences, GKVK, Bengaluru, India.
Tanhaji Shivaji Kale
Department of Vegetable Science, Dr. PDKV., Akola, Maharashtra, india.
Avdhesh Kumar
Department of Fruit Science, ANDUAT, Kumarganj, Ayodhya Uttar Pradesh, India.
S. Keerthana
Department of Plant Breeding and Genetics, Imayam Institute of Agriculture, Kannanur, Thuraiyur, Trichy – 621206, India.
M. Karthikeyan
Department of Plant Breeding and Genetics, Mother Teresa College of Agriculture, Mettusalai, Illupur, Pudukkottai – 622102, India.
Shankar M
Division of Plant Genetic Resources, ICAR - Indian Agricultural Research Institute, New Delhi, India.
*Author to whom correspondence should be addressed.
Abstract
Marker-assisted breeding (MAB) is revolutionizing the cultivation of horticultural crops by enabling more accurate genetic selection of desired traits. Unlike traditional breeding methods, which depend heavily on selecting traits based on visible characteristics, a process often hindered by complex inheritance patterns and environmental influences, MAB uses molecular markers tied to specific genes. This allows breeders to more efficiently identify and choose plants with the desired genetic features. MAB has significantly accelerated the breeding process for crops with traits like disease resistance, higher yields, and enhanced nutritional and visual qualities. It also reduces the time needed for breeding cycles; while traditional methods may require multiple generations to achieve desired traits, MAB can confirm the presence of beneficial genes early, speeding up the development of improved varieties. This is particularly crucial in addressing challenges like climate change, where crops must quickly adapt to stressors such as drought, salinity, and temperature fluctuations. In essence, MAB represents a major advancement in horticultural crop development, increasing the precision and efficiency of breeding efforts. It also plays a vital role in creating crops suited to specific environmental and market needs, while helping tackle global issues like food security, climate change resilience, and sustainable farming. MAB positions horticulture to better meet evolving consumer expectations and agricultural demands.
Keywords: Horticultural, genetics, sustainable, chemical, traditional, generations