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Gynoecium size and ovule number are interconnected traits that impact seed yield
- Source :
- Journal of Experimental Botany
- Publication Year :
- 2020
- Publisher :
- Oxford University Press, 2020.
-
Abstract
- An overview of the gene and hormone regulatory network involved in determining ovule number and gynoecium size, two fundamental processes that affect seed yield.<br />Angiosperms form the largest group of land plants and display an astonishing diversity of floral structures. The development of flowers greatly contributed to the evolutionary success of the angiosperms as they guarantee efficient reproduction with the help of either biotic or abiotic vectors. The female reproductive part of the flower is the gynoecium (also called pistil). Ovules arise from meristematic tissue within the gynoecium. Upon fertilization, these ovules develop into seeds while the gynoecium turns into a fruit. Gene regulatory networks involving transcription factors and hormonal communication regulate ovule primordium initiation, spacing on the placenta, and development. Ovule number and gynoecium size are usually correlated and several genetic factors that impact these traits have been identified. Understanding and fine-tuning the gene regulatory networks influencing ovule number and pistil length open up strategies for crop yield improvement, which is pivotal in light of a rapidly growing world population. In this review, we present an overview of the current knowledge of the genes and hormones involved in determining ovule number and gynoecium size. We propose a model for the gene regulatory network that guides the developmental processes that determine seed yield.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Gynoecium
ovule number
Physiology
Meristem
Gene regulatory network
Plant Science
Flowers
Biology
01 natural sciences
03 medical and health sciences
Magnoliopsida
seed yield
Primordium
Ovule
organ boundary
Gene
Abiotic component
hormones
AcademicSubjects/SCI01210
fungi
food and beverages
ovule primordia
030104 developmental biology
Evolutionary biology
Flowering Newsletter Reviews
pistil
Seeds
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 14602431 and 00220957
- Volume :
- 71
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Journal of Experimental Botany
- Accession number :
- edsair.doi.dedup.....9ca9539d9e5b70793c3aed77ddfe9155