Breeding for morphological traits

Erskine, William; Nassib, A. M.; Telaye, A.

doi:10.1007/978-94-009-2764-3_12

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Plant height and branch number are the traits that have undergone the largest change over this period shown by a strong RYOR of 0.73 and −0.49, respectively, ( Table 3 ). A long-term goal in lentil breeding has been to include plant height and erectness in selection programs so as to enable the use of machinery for harvest ( Erskine et al, 1988 ). The importance of plant height has also been observed in 287 diverse lentil accessions where plant height correlated with biomass and yield ( Tullu et al, 2001 ).…”

Section: Discussionmentioning

confidence: 99%

Breeding has selected for architectural and photosynthetic traits in lentils

et al. 2022

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Genetic progress in seed yield in lentils (Lens culinaris Medik) has increased by 1.1% per year in Australia over the past 27 years. Knowing which plant traits have changed through breeding during this time can give important insights as to how lentil yield has increased. This study aims to identify morphological and physiological traits that were directly or indirectly selected between 1993 and 2020 in the Australian lentil breeding program using 2 years of experimental data. Major changes occurred in plant architecture during this period. Divergent selection has seen the release of varieties that have sprawling to very upright types of canopies. Despite this genetic diversity in recently released varieties, there is an overall tendency of recently released varieties having increased plant height and leaf size with reduced number of branches. Increased light interception was positively correlated with year of release (YOR) and yield, and likely results from indirect selection of yield and taller plant types. There is an indication that recently released varieties have lower CO2 assimilation rate, stomatal conductance and canopy temperature depression (CTD) at high ambient temperatures (~30°C). Understanding lentil physiology will assist in identifying traits to increase yield in a changing climate with extreme weather events.

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Section: Discussionmentioning

confidence: 99%

Breeding has selected for architectural and photosynthetic traits in lentils

et al. 2022

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Introgression of morphological, phenological and productivity traits along with disease resistance from Cicer pinnatifidum into cultivated chickpea: a success story

et al. 2023

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First approach to pod dehiscence in faba bean: genetic and histological analyses

Aguilar-Benitez

Casimiro-Soriguer

Torres

2020

Sci Rep

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Pod dehiscence causes important yield losses in cultivated crops and therefore has been a key trait strongly selected against in crop domestication. In spite of the growing knowledge on the genetic basis of dehiscence in different crops, no information is available so far for faba bean. Here we conduct the first comprehensive study for faba bean pod dehiscence by combining, linkage mapping, comparative genomics, QTL analysis and histological examination of mature pods. Mapping of dehiscence-related genes revealed conservation of syntenic blocks among different legumes. Three QTLs were identified in faba bean chromosomes II, IV and VI, although none of them was stable across years. Histological analysis supports the convergent phenotypic evolution previously reported in cereals and related legume species but revealed a more complex pattern in faba bean. Contrary to common bean and soybean, the faba bean dehiscence zone appears to show functional equivalence to that described in crucifers. The lignified wall fiber layer, which is absent in the paucijuga primitive line Vf27, or less lignified and vacuolated in other dehiscent lines, appears to act as the major force triggering pod dehiscence in this species. While our findings, provide new insight into the mechanisms underlying faba bean dehiscence, full understanding of the molecular bases will require further studies combining precise phenotyping with genomic analysis.

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Breeding for morphological traits

Cited by 3 publications

References 26 publications

Breeding has selected for architectural and photosynthetic traits in lentils

Breeding has selected for architectural and photosynthetic traits in lentils

Introgression of morphological, phenological and productivity traits along with disease resistance from Cicer pinnatifidum into cultivated chickpea: a success story

First approach to pod dehiscence in faba bean: genetic and histological analyses

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