NDLI: Novel QTLs for growth angle of seminal roots in wheat (Triticum aestivum L.)

Content Provider	Springer Nature Link
Author	Hamada, Alhosein Nitta, Miyuki Nasuda, Shuhei Kato, Kenji Fujita, Masaya Matsunaka, Hitoshi Okumoto, Yutaka
Copyright Year	2011
Abstract	Because plants cannot change their environmental circumstances by changing their location, they must instead adapt to a wide variety of environmental conditions, especially soil conditions. One of the most effective ways for a plant to adapt to a given soil condition is by modifying its root system architecture. We aim to identify the genetic factors controlling root growth angle, a trait that affects root system architecture.The present study consisted of a genetic analysis of the seminal root growth angle in wheat; the parental varieties of the doubled haploid lines (DHLs) used in this study exhibited significantly different root growth directions. Using the ‘basket’ method, the ratio of deep roots (DRR; the proportion of total roots with GA > 45 degrees) was observed for evaluating deep rooting.We were able to identify novel quantitative trait loci (QTLs) controlling the gravitropic and hydrotropic responses of wheat roots. Moreover, we detected one QTL for seminal root number per seedling (RN) on chromosome 5A and two QTLs for seminal root elongation rate (ER) on chromosomes 5D and 7D.Gravitropic and hydrotropic responses of wheat roots, which play a significant role in establishing root system architecture, are controlled by independent genetic factors.
Starting Page	395
Ending Page	405
Page Count	11
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	354
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-12-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gravitropism Hydrotropism Quantitative trait locus Root growth angle Root system architecture Triticum aestivum L. Soil Science & Conservation Plant Sciences Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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Novel QTLs for growth angle of seminal roots in wheat (Triticum aestivum L.)

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