Abstract
O. RNA-seq and weighted gene co-expression network analysis (WGCNA) were performed to identify the modules and genes associated with Cd-accumulative traits of rice. After Cd stress treatment, the Cd content in various tissues of S315 was significantly higher than that of S47. In the stem nodes, the Cd distribution results of the two varieties indicated that the unelongated nodes near the root (short for node A) had a stronger ability to block Cd transfer upwards than the panicle node (short for node B). Cd stress induced huge changes in gene expression profiles. After analyzing the differentially expressed genes (DEGs) in significantly correlated WGCNA modules, we found that genes related to heavy metal transportation had higher expression levels in node A than that in node B, such as Copper transporter 6 (OS04G0415600), Zinc transporter 10 (OS06G0566300), and some heavy-metal associated proteins (OS11G0147500, OS03G0861400, and OS10G0506100). In the comparison results between S315 and S47, the expression of chitinase (OS03G0679700 and OS06G0726200) was increased by Cd treatment in S315. In addition, OsHSPs (OS05G0460000, OS08G0500700), OsHSFC2A (OS02G0232000), and OsDJA5 (OS03G0787300) were found differentially expressed after Cd treatment in S315, but changed less in S47. In summary, different rice varieties have different processes and intensities in response to Cd stress. The node A might function as the key tissue for blocking Cd upward transport into the panicle via vigorous processes, including of heavy metal transportation, response to stress, and cell wall.
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Claims 9
Claim · model-written summary
S315 tissues accumulated significantly more Cd than S47 after Cd treatment.
- Taxon
- rice
Oryza sativat0 - Material
- S315e0
- Treatment
- Cd stress treatmente0
- Outcome
- Cd contente0
- Direction
- highere0
- Comparator
- S47e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After Cd stress treatment, the Cd content in various tissues of S315 was significantly higher than that of S47”
t0“rice varieties”
Claim · model-written summary
Node A blocked upward Cd transfer more strongly than node B.
- Taxon
- riceOryza sativat0
- Organ / stage
- node Ae0
- Outcome
- ability to block Cd transfer upwardse0
- Direction
- strongere0
- Comparator
- node Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the unelongated nodes near the root (short for node A) had a stronger ability to block Cd transfer upwards than the panicle node (short for node B)”
t0“rice varieties”
Claim · model-written summary
Cd stress caused major gene expression changes.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- gene expression profilese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress induced huge changes in gene expression profiles”
t0“rice varieties”
Claim · model-written summary
Copper transporter 6 expression was higher in node A than B.
- Taxon
- riceOryza sativat0
- Organ / stage
- node Ae0
- Gene
- Copper transporter 6 (OS04G0415600)e0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- node Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes related to heavy metal transportation had higher expression levels in node A than that in node B, such as Copper transporter 6 (OS04G0415600)”
t0“rice varieties”
Claim · model-written summary
Zinc transporter 10 expression was higher in node A than B.
- Taxon
- riceOryza sativat0
- Organ / stage
- node Ae0
- Gene
- Zinc transporter 10 (OS06G0566300)e0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- node Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes related to heavy metal transportation had higher expression levels in node A than that in node B, such as Copper transporter 6 (OS04G0415600), Zinc transporter 10 (OS06G0566300)”
t0“rice varieties”
Claim · model-written summary
Heavy-metal associated proteins had higher expression in node A than B.
- Taxon
- riceOryza sativat0
- Organ / stage
- node Ae0
- Gene
- heavy-metal associated proteinse0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- node Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes related to heavy metal transportation had higher expression levels in node A than that in node B, such as Copper transporter 6 (OS04G0415600), Zinc transporter 10 (OS06G0566300), and some heavy-metal associated proteins (OS11G0147500, OS03G0861400, and OS10G0506100)”
t0“rice varieties”
Claim · model-written summary
Cd treatment increased chitinase expression in S315.
- Taxon
- riceOryza sativat0
- Material
- S315e0
- Treatment
- Cd treatmente0
- Gene
- chitinase (OS03G0679700 and OS06G0726200)e0
- Outcome
- expression of chitinasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression of chitinase (OS03G0679700 and OS06G0726200) was increased by Cd treatment in S315”
t0“rice varieties”
Claim · model-written summary
OsHSPs, OsHSFC2A and OsDJA5 were differentially expressed after Cd treatment in S315, with less change in S47.
- Taxon
- riceOryza sativat0
- Material
- S315e0
- Treatment
- Cd treatmente0
- Gene
- OsHSPse0
- Outcome
- differentially expressede0
- Direction
- changed lesse0
- Comparator
- S47e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsHSPs (OS05G0460000, OS08G0500700), OsHSFC2A (OS02G0232000), and OsDJA5 (OS03G0787300) were found differentially expressed after Cd treatment in S315, but changed less in S47”
t0“rice varieties”
Claim · model-written summary
Node A was proposed as a key barrier to upward Cd transfer into the panicle.
- Taxon
- riceOryza sativat0
- Organ / stage
- node Ae0
- Outcome
- blocking Cd upward transport into the paniclee0
- Qualifier
- heavy metal transportation, response to stress, and cell walle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The node A might function as the key tissue for blocking Cd upward transport into the panicle via vigorous processes, including of heavy metal transportation, response to stress, and cell wall”
t0“rice varieties”
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