Two Novel QTLs for Heading Date Are Identified Using a Set of Chromosome Segment Substitution Lines in Rice (Oryza sativa L.)

Shen, Gary X.; Xing, Yongzhong

doi:10.1016/j.jgg.2014.08.008

Cited by 14 publications

(13 citation statements)

References 20 publications

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“…along the Gulf of Carpentaria also mirrors that of a number of other lizard and frog clades [ 16 , 49 ]. Another putative biogeographic barrier, the Carpenteria Gap [ 17 , 49 , 52 ], separates D . barraganae sp.…”

Section: Discussionmentioning

confidence: 87%

“…The distributions of the species endemic to the AMT broadly correspond to seperate regions of endemism; specifically the Kimberley, Top End and Gulf [ 16 , 17 , 49 ], and are separated by putative biogeographic barriers [ 49 , 50 ] ( Fig. 3 ).…”

Section: Discussionmentioning

confidence: 99%

“…is endemic to the Kimberley region. The moderate genetic diversity of this species contrasts with very high genetic diversity of some saxicoline gecko lineages endemic to the same region [ 6 , 16 , 23 ] but is similar to Kimberley endemic toadlet lineages more strongly associated with savanna woodlands [ 49 ]. Based on current sampling, the eastern extent of the range of D .…”

Section: Discussionmentioning

confidence: 99%

“…hillii is only known from the western Top End (east of the Arnhemland Escarpment). A disjunction in this region (the Mid-Territory Break) has been detected in Uperolia toadlets [ 49 ] and may be related to variations in geology and topography around the Arnhem Escarpment. The distribution of D .…”

Section: Discussionmentioning

confidence: 99%

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Independent Transitions between Monsoonal and Arid Biomes Revealed by Systematic Revison of a Complex of Australian Geckos (Diplodactylus; Diplodactylidae)

2014

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How the widespread expansion and intensification of aridity through the Neogene has shaped the Austral biota is a major question in Antipodean biogeography. Lineages distributed across wide aridity gradients provide opportunities to examine the timing, frequency, and direction of transitions between arid and mesic regions. Here, we use molecular genetics and morphological data to investigate the systematics and biogeography of a nominal Australian gecko species (Diplodactylus conspicillatus sensu lato) with a wide distribution spanning most of the Australian Arid Zone (AAZ) and Monsoonal Tropics (AMT). Our data support a minimum of seven genetically distinct and morphologically diagnosable taxa; we thus redefine the type species, ressurrect three names from synonymy, and describe three new species. Our inferred phylogeny suggests the history and diversification of lineages in the AAZ and AMT are intimately linked, with evidence of multiple independent interchanges since the late Miocene. However, despite this shared history, related lineages in these two regions also show evidence of broadly contrasting intra-regional responses to aridification; vicarance and speciation in older and increasingly attenuated mesic regions, versus a more dynamic history including independent colonisations and recent range expansions in the younger AAZ.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Independent Transitions between Monsoonal and Arid Biomes Revealed by Systematic Revison of a Complex of Australian Geckos (Diplodactylus; Diplodactylidae)

2014

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“…A total of 3300 BC 4 F 2 plants were used to identify the gene underlying the variation of heading date. Introgression lines of Hd1 in the ZS97 background and MH63 background were scanned from reciprocal advanced chromosome segment substitution lines (CSSLs) between ZS97 and MH63 6 ] and will hereafter be referred to as ZS-hd1 (MH63 homozygous Hd1 alleles in ZS97 background) and MH-Hd1 (ZS97 homozygous Hd1 alleles in MH63 background), respectively. ZS-Ghd7, a NIL carrying MH63 Ghd7 alleles in ZS97 background 16 , was crossed with ZS-hd1, and a near isogenic F 2 population was obtained to analyze the genetic interaction between Hd1 and Ghd7 .…”

Section: Methodsmentioning

confidence: 99%

Alternative functions of Hd1 in repressing or promoting heading are determined by Ghd7 status under long-day conditions

Zhang

Shen

et al. 2017

Sci Rep

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Previous studies suggested that Hd1 promoted heading under short-day conditions (SD) and delayed heading under long-day conditions (LD). However in this study, Hd1 was demonstrated to consistently promote heading date in Zhenshan 97 (ZS97) background by upregulating Ehd1, Hd3a and RFT1 expression under both SD and LD. While the high photoperiod sensitivity of Hd1 was observed in Minghui 63 (MH63) background, with heading being suppressed in LD but promoted in SD. Comparative analysis of two sets of near isogenic lines of Hd1 in MH63 and ZS97 backgrounds indicated that the alternative functions of Hd1 in promoting or suppressing heading under LD are dependent on the previously cloned flowering repressor gene Ghd7. The interaction between proteins Ghd7 and Hd1 occurred through binding of the CCT domain of Ghd7 to the transcription-activating domain of Hd1, resulting in suppression of Ehd1 and florigen gene expression. The involvement of the transcription-activating domain of Hd1 in this protein-protein interaction probably blocked or weakened its transcriptional activity. These findings suggest that Hd1 alone essentially acts as a promoter of heading date, and the protein interaction between Ghd7 and Hd1 determines photoperiod sensitivity and integrated Hd1-mediated and Ehd1-mediated flowering pathways in rice.

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Development and use of chromosome segment substitution lines as a genetic resource for crop improvement

et al. 2018

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Two Novel QTLs for Heading Date Are Identified Using a Set of Chromosome Segment Substitution Lines in Rice (Oryza sativa L.)

Cited by 14 publications

References 20 publications

Independent Transitions between Monsoonal and Arid Biomes Revealed by Systematic Revison of a Complex of Australian Geckos (Diplodactylus; Diplodactylidae)

Independent Transitions between Monsoonal and Arid Biomes Revealed by Systematic Revison of a Complex of Australian Geckos (Diplodactylus; Diplodactylidae)

Alternative functions of Hd1 in repressing or promoting heading are determined by Ghd7 status under long-day conditions

Development and use of chromosome segment substitution lines as a genetic resource for crop improvement

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